Ophthalmic lens, and frame eyeglasses having the same

Abstract

SOLUTION: The present disclosure relates to an ophthalmic lens, and frame eyeglasses with the ophthalmic lens. The ophthalmic lens includes: a central region; a plurality of first refractive regions; and a plurality of second refractive regions. The plurality of first refractive regions is arranged in a first region surrounding the central region, the plurality of second refractive regions is arranged in a second region apart from the central region further than the first region, and a part or all of the central region has a prescribed refractive power based on a prescription of a human eye. The plurality of first refractive regions and the plurality of second refractive regions each has a refractive power different from the prescribed refractive power. A proportion of a total area of the plurality of first refractive regions to an area of the first region is larger than that of a total area of the plurality of second refractive regions to an area of the second region.EFFECT: Accordingly, the present disclosure can more effectively manage and control the progression of myopia.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to the technical field of eyeglass lenses, and more particularly to an ophthalmic lens having a plurality of micro-defocus regions and an eyeglass frame including the same. [Background technology]

[0002] Refractive errors of the human eye include myopia, hyperopia, and astigmatism, among which myopia is the most common refractive error, especially occurring in adolescents. When the eye is in a resting accommodation state, external parallel light rays pass through the refractive system of the eye and are focused in front of the retina instead of the retinal fovea, causing the patient to be unable to see distant objects, that is, myopia occurs; that is, when the axial length of the eye is greater than the focal length of the optical system of the eye, myopia occurs.

[0003] Ophthalmic devices such as frame lenses and contact lenses are typically used to correct or improve a patient's vision. For example, minus lenses are used to correct myopia and plus lenses are used to correct hyperopia. Conventional ophthalmic lenses for myopia correction are single (single-focus) spherical lenses, meaning that the refractive power is the same from the center to the edge of the eyeglasses. The Petzval surface, which is the best focus surface generated by a single spherical lens, is spherical. However, because the eyeball is generally ellipsoidal, the peripheral Petzval surface is located behind the retina, creating hyperopic defocus. Hyperopic defocus promotes axial growth, thereby accelerating the progression of myopia.

[0004] Currently, there are several types of ophthalmic lenses for managing and controlling the progression of myopia (hereinafter simply referred to as "myopia management and control"). Among them, see CN104678572A, which has multiple microlenses arranged on a single spherical lens that suppress the progression of myopia by forming an image of an object in front of the retina.

[0005] However, there is still a need for myopia management and control lenses that can effectively limit the increase in axial length of the eye without significantly affecting visual quality. It is also expected that myopia management and control lenses can improve patient compliance and / or reduce inter-individual differences, thereby improving the effectiveness of myopia management and control. Summary of the Invention

[0006] In order to at least partially solve the problems of the prior art, according to a first aspect of the present disclosure, there is provided an ophthalmic lens including a central region, a plurality of first refractive regions, and a plurality of second refractive regions, wherein the plurality of first refractive regions are arranged in a first region surrounding the central region, the plurality of second refractive regions are arranged in a second region farther from the central region than the first regions, a part or all of the central region has a prescribed refractive power based on a prescription for a human eye, the plurality of first refractive regions and the plurality of second refractive regions all have refractive powers different from the prescribed refractive power, and a ratio of a total area of ​​the plurality of first refractive regions to an area of ​​the first region is greater than a ratio of a total area of ​​the plurality of second refractive regions to an area of ​​the second region.

[0007] Optionally, the density of the plurality of first refractive regions in the first region is greater than the density of the plurality of second refractive regions in the second region, and / or the average pitch between the plurality of first refractive regions is smaller than the average pitch between the plurality of second refractive regions.

[0008] Optionally, the plurality of first refractive regions are arranged such that, when a wearer wears the ophthalmic lens, an incident light beam that has passed through some or all of the plurality of first refractive regions is projected onto an area between 10 degrees and 20 degrees near the macular fovea of ​​the wearer's retina.

[0009] Alternatively, the plurality of first refractive regions are at least partially arranged within a ring-shaped region centered on the center of the ophthalmic lens, the ring-shaped region having an inner diameter of 9.0 mm and an outer diameter of 15.0 mm, or at least partially arranged within a ring-shaped region centered on the center of the ophthalmic lens, the ring-shaped region having an inner diameter of 9.5 mm and an outer diameter of 14.0 mm, or at least partially arranged within a ring-shaped region centered on the center of the ophthalmic lens, the ring-shaped region having an inner diameter of 11.0 mm and an outer diameter of 14.0 mm.

[0010] Optionally, the plurality of first refractive regions are closely spaced apart and / or the plurality of second refractive regions are spaced apart.

[0011] Optionally, the maximum dimension of the projection of each of the plurality of first refractive regions and each of the plurality of second refractive regions on the ophthalmic lens is independently selected from the range of 0.5 to 2.2 mm, and / or the projection of each of the plurality of first refractive regions and each of the plurality of second refractive regions on the ophthalmic lens is circular, and / or each of the plurality of first refractive regions and each of the plurality of second refractive regions has a surface shape selected from a spherical surface, an aspherical surface, or a toric surface, and / or the plurality of second refractive regions have equal projected areas on the ophthalmic lens.

[0012] Optionally, each of the plurality of first refractive regions has a refractive power equal to the prescribed refractive power plus a positive refractive power, and / or each of the plurality of second refractive regions has a refractive power equal to the prescribed refractive power plus a positive refractive power, or the refractive powers of the plurality of first refractive regions and the plurality of second refractive regions are all the same, or the refractive powers of the plurality of first refractive regions and the plurality of second refractive regions increase gradually or stepwise along the radial direction of the ophthalmic lens as the radial distance increases. and / or the dimensions of the plurality of first refractive regions and the plurality of second refractive regions gradually or stepwise decrease as the radial distance increases, or along the radial direction of the ophthalmic lens the refractive power of the plurality of first refractive regions and the plurality of second refractive regions gradually or stepwise decrease as the radial distance increases, and / or the dimensions of the plurality of first refractive regions and the plurality of second refractive regions gradually or stepwise increase as the radial distance increases.

[0013] Alternatively, the maximum dimension of the central region is selected from the range of 3.0 to 11.0 mm, and / or the central region is a circular region centered on the center of the ophthalmic lens, and the diameter of the circular region is selected from the range of 3.0 to 11.0 mm, and / or the first region is a ring-shaped region centered on the center of the ophthalmic lens, and the diameter of the inner edge of the ring-shaped region is selected from the range of 3.0 to 11.0 mm and the diameter of the outer edge is selected from the range of 15.0 to 28.6 mm, and / or the second region is a ring-shaped region centered on the center of the ophthalmic lens.

[0014] Optionally, the proportion of the total area of ​​the plurality of first refractive regions in the first region is 60% or more and 78.5% or less, or greater than 63% and 78.5% or less, or greater than 66% and 78.5% or less, and / or the proportion of the total area of ​​the plurality of second refractive regions in the second region is less than 60%, or less than 57%, or less than 54%.

[0015] Optionally, the first region includes one or more first patterns, some or all of the first regions being first ring-shaped regions centered on the center of the ophthalmic lens, with an inner edge diameter of 9 mm and an outer edge diameter of 15 mm, and the percentage of the total area of ​​the first refractive region within any one single first pattern within the first ring-shaped region is greater than 70% and less than 78.5%, or greater than 72% and less than 78.5%.

[0016] Optionally, the first region includes one or more first patterns, and some or all of the plurality of first refractive regions are arranged in the one or more first patterns, and / or the second region includes one or more second patterns, and some or all of the plurality of second refractive regions are arranged in the one or more second patterns.

[0017] Optionally, the first pattern and the second pattern are both ring-shaped patterns arranged concentrically with the center of the ophthalmic lens, or the second pattern is a fan-shaped ring pattern arranged concentrically with the center of the ophthalmic lens.

[0018] Optionally, the pitch between any two adjacent second patterns is equal to the pitch between any two adjacent first patterns, and / or the pitch between any two adjacent second patterns is equal to the pitch between adjacent first and second patterns, or the pitch between any two adjacent second patterns, the pitch between any two adjacent first patterns, and / or the pitch between adjacent first and second patterns are all zero, or the pitch between any adjacent first patterns is 0.5 mm or less.

[0019] Optionally, the number of the first patterns is 1-4 and the number of the second patterns is 1-15.

[0020] Optionally, the first refractive regions are uniformly distributed within at least one first pattern and / or the second refractive regions are uniformly distributed within at least one second pattern.

[0021] Optionally, in at least one first pattern, the edges of adjacent first refractive regions are in contact with each other, and / or, in at least one first pattern, the pitch between the first refractive regions is selected from the range of 0 to 0.5 mm, and / or, in at least one second pattern, the pitch between the second refractive regions is greater than the maximum value of the pitch between the first refractive regions, and / or, among the plurality of second patterns, the second pattern closer to the center of the ophthalmic lens has a smaller pitch between the second refractive regions, and / or, among patterns including all the first patterns and all the second patterns, the pattern closer to the center of the ophthalmic lens has a smaller pitch between the first refractive regions or the second refractive regions.

[0022] and / or, if the first region includes a plurality of first patterns, the proportion of the total area of ​​the first refraction regions in each of the first patterns is 60% or more and 78.5% or less; and / or, if the first region includes a plurality of first patterns, the proportion of the total area of ​​the first refraction regions in at least two of the first patterns is 70% or more and 78.5% or less; and / or, if the first region includes a plurality of first patterns, the proportion of the total area of ​​the first refraction regions in at least one of the second patterns is 30% or more but less than 60%, or 35% or more but less than 60%, or 40% or more but less than 60%; and / or, if the second region includes a plurality of second patterns, the proportion of the total area of ​​the second refraction regions in each of the second patterns is 30% or more but less than 60%.

[0023] Optionally, when the first region includes a plurality of first patterns, the proportion of the total area of ​​the first refractive regions in the first patterns closer to the center of the ophthalmic lens is greater than the proportion of the total area of ​​the first refractive regions in the first patterns farther from the center of the ophthalmic lens, and / or when the second region includes a plurality of second patterns, the proportion of the total area of ​​the second refractive regions in the second patterns closer to the center of the ophthalmic lens is greater than the proportion of the total area of ​​the second refractive regions in the second patterns farther from the center of the ophthalmic lens, and / or the proportion of the total area of ​​the first refractive regions in each first pattern is greater than the proportion of the total area of ​​the second refractive regions in each second pattern.

[0024] Optionally, the plurality of first refractive regions are distributed on a plurality of rays or a plurality of curves originating from the center of the ophthalmic lens, and / or the plurality of second refractive regions are distributed on a plurality of rays or a plurality of curves originating from the center of the ophthalmic lens.

[0025] Optionally, each ray or curve has a first refractive region and a second refractive region distributed thereon, and / or the plurality of rays or curves are uniformly distributed on the ophthalmic lens.

[0026] Optionally, along the same ray or curve, the first refractive region has a uniform addition power, and / or the second refractive region has a uniform addition power, and / or the first and second refractive regions have a uniform addition power, or along the same ray or curve, the first refractive region has a uniform size, and / or the second refractive region has a uniform size, and / or the first and second refractive regions have a uniform size, or along the same ray or curve, along a direction away from the center of the ophthalmic lens, The direction of change of the addition power of the first refractive region is opposite to the direction of change of its dimensions, and / or the direction of change of the addition power of the second refractive region is opposite to the direction of change of its dimensions, or the dimensions of the first refractive region and the second refractive region increase gradually or stepwise along the same radial line or curve in a direction away from the center of the ophthalmic lens, and / or the addition power of the first refractive region and the second refractive region decrease gradually or stepwise along the same radial line or curve in a direction away from the center of the ophthalmic lens.

[0027] Optionally, adjacent first refractive regions and / or adjacent second refractive regions on the same radial or curved line abut each other.

[0028] Optionally, the number of said plurality of rays or said plurality of curves is 16-40, or 26-35.

[0029] Optionally, in each ray or curve, the number of first refractive regions is less than the number of second refractive regions, and / or if the number of rays in the plurality is 2n, the rays form n straight lines.

[0030] Optionally, the plurality of first refractive regions and the plurality of second refractive regions are positioned to maintain a substantially constant image jump across the first and second regions.

[0031] Optionally, the coefficient of variation of image jumps of the plurality of first refractive regions and the plurality of second refractive regions across the first and second regions is less than 20%.

[0032] Optionally, the coefficient of variation of image jumps of the plurality of second refractive regions across the second regions is less than 15%, or less than 12%, or less than 10%.

[0033] Optionally, the proportion of the total area of ​​the first refractive region provided on the temporal side of the first region is different from the proportion of the total area of ​​the first refractive region provided on the nasal side of the first region, and / or the addition power of the first refractive region is asymmetrically provided on the temporal side and the nasal side of the first region, and / or the proportion of the total area of ​​the second refractive region provided on the temporal side of the second region is different from the proportion of the total area of ​​the second refractive region provided on the nasal side of the second region, and / or the addition power of the second refractive region is asymmetrically provided on the temporal side and the nasal side of the second region.

[0034] Optionally, the proportion of the total area of ​​the first refractive regions provided on the temporal side of the first region is greater than the proportion of the total area of ​​the first refractive regions provided on the nasal side of the first region, and / or the average addition power of the first refractive regions provided on the temporal side of the first region is greater than the average addition power of the first refractive regions provided on the nasal side of the first region, and / or the proportion of the total area of ​​the second refractive regions provided on the temporal side of the second region is greater than the proportion of the total area of ​​the second refractive regions provided on the nasal side of the second region, and / or the average addition power of the second refractive regions provided on the temporal side of the second region is greater than the average addition power of the second refractive regions provided on the nasal side of the second region.

[0035] Optionally, the ophthalmic lens is divided into a plurality of sectorial regions with the center of the ophthalmic lens as the origin, and the first refractive region is set in the plurality of sectorial regions so that each sectorial region is independent from the other sectors, and the second refractive region is set so that each sectorial region is independent from the other sectors.

[0036] According to a second aspect of the present disclosure, there is provided a frame eyeglass provided with an ophthalmic lens according to the first aspect of the present disclosure and various optional embodiments thereof.

[0037] In the present disclosure, the phrase "chosen from" is understood to mean that any value in the subsequent numerical range can be selected, including the two endpoints of that numerical range.

[0038] The center line of a pattern or ring in this disclosure is understood to mean a line passing through the midpoint of the radial width of the pattern or ring. Note that the center of the first / second refractive region, etc. in this disclosure means the geometric center of the figure of the refractive region projected onto a front view of the lens.

[0039] A series of simplified form concepts are introduced in the content of the application, which will be further explained in detail in the detailed description. The content of the application is not intended to limit the key features and essential technical features of the technical solution sought to be protected, nor is it intended to limit the scope of protection of the technical solution sought to be protected.

[0040] The advantages and features of the present invention will be described in detail below with reference to the drawings. [Brief explanation of the drawings]

[0041] The following drawings of the present application are used as part of and to understand the present application: The accompanying drawings show embodiments of the present application and their illustrations for explaining the principles of the present application. [Figure 1] FIG. 1 is a front view of an ophthalmic lens according to one exemplary embodiment of the present application. [Figure 2] FIG. 2 is a front view of an ophthalmic lens according to another exemplary embodiment of the present application. [Figure 3] FIG. 3 is a partially enlarged view of FIG. [Figure 4] FIG. 4 is a front view of an ophthalmic lens according to yet another exemplary embodiment of the present application. [Figure 5] FIG. 5 is a front view of an ophthalmic lens according to yet another exemplary embodiment of the present application. [Figure 6] FIG. 6 is a partially enlarged view of FIG. [Figure 7]FIG. 7 is a data chart comparing an ophthalmic lens according to one exemplary embodiment of the present application with a comparative example. [Figure 8A] 8A-8E are simplified schematic diagrams of ophthalmic lenses according to different embodiments of the present application, each showing a different distribution of refractive regions, and the outer contours of all microlenses are not drawn to clearly show the arrangement rules of the microlenses. [Figure 8B] 8A-8E are simplified schematic diagrams of ophthalmic lenses according to different embodiments of the present application, each showing a different distribution of refractive regions, and the outer contours of all microlenses are not drawn to clearly show the arrangement rules of the microlenses. [Figure 8C] 8A-8E are simplified schematic diagrams of ophthalmic lenses according to different embodiments of the present application, each showing a different distribution of refractive regions, and the outer contours of all microlenses are not drawn to clearly show the arrangement rules of the microlenses. [Figure 8D] 8A-8E are simplified schematic diagrams of ophthalmic lenses according to different embodiments of the present application, each showing a different distribution of refractive regions, and the outer contours of all microlenses are not drawn to clearly show the arrangement rules of the microlenses. [Figure 8E] 8A-8E are simplified schematic diagrams of ophthalmic lenses according to different embodiments of the present application, each showing a different distribution of refractive regions, and the outer contours of all microlenses are not drawn to clearly show the arrangement rules of the microlenses. [Figure 9] FIG. 9 is a front view of an ophthalmic lens according to yet another exemplary embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0042] In the following description, many details are provided to enable a thorough understanding of the present application. However, it will be understood by those skilled in the art that the following description merely exemplifies a preferred embodiment of the present application, and the present application may be implemented without one or more of these details. In addition, technical features known in the art will not be described in detail to avoid confusion with the present application.

[0043] In order to fully understand the embodiments of the present application, detailed structures are shown in the following description. It is clear that the implementation of the embodiments of the present application is not limited to the specific details known to those skilled in the art. Although the preferred embodiments of the present application are described in detail as follows, in addition to these detailed descriptions, the present application may have other embodiments.

[0044] In order to inhibit the progression of refractive error in the eye and to achieve clear vision after wearing the lens, one aspect of the present application provides an ophthalmic lens.

[0045] First, the ophthalmic lens of the present invention will be described in detail below using FIG. 1 as an example.

[0046] As shown in FIG. 1, the ophthalmic lens 1 includes a central region 5, a plurality of first refractive regions 2, and a plurality of second refractive regions 3, and the plurality of first refractive regions 2 are arranged in a first region 8 surrounding the central region 5 (a region surrounded by two dashed lines that are adjacent to the plurality of first refractive regions 2 in FIG. 1), and the plurality of second refractive regions 3 are arranged in a second region 9 (a region surrounded by two dashed lines that are adjacent to the innermost and outermost second refractive regions 3 in FIG. 1) that is farther from the central region 5 than the first region 8.

[0047] Part or all of the central region 5 may have a prescribed refractive power based on the prescription of the human eye (the user's / wearer's eye). In some embodiments, the central region 5 is designed to be directly opposite the pupil when the user looks straight ahead after wearing the glasses. In this way, parallel light rays incident on the pupil during distance vision are corrected by the central region 5 and then focused exactly on the fovea of ​​the macula, ensuring clear vision. The prescribed refractive power is the refractive power prescribed by a vision testing institution and can be considered as the commonly-used power. If the user is myopic, the prescribed refractive power may be negative. In some embodiments, if the user does not meet the myopia standard but has insufficient hyperopic reserve, the prescribed refractive power may be zero or positive to prevent myopia. In some embodiments, the central region 5 may be a single-focus region having a prescribed refractive power. In other embodiments, the central region 5 may be a multifocal region having a continuously changing refractive power, such as a progressive multifocal region. In this case, the central area 5 only partially has the prescribed refractive power.

[0048] The plurality of first refractive regions 2 and the plurality of second refractive regions 3 provided around the central region 5 each have a refractive power different from the prescribed refractive power. Therefore, the first refractive region 2 and the second refractive region 3 each can focus light rays at a position other than the retina of the eye, thereby suppressing the progression of refractive errors of the eye.

[0049] In some embodiments, at least a part of the region in the ophthalmic lens 1 where the first refractive region 2 and the second refractive region 3 are not arranged has a prescription refractive power, and for example, at least one of the central region 5 shown in FIG. 1, FIG. 2, FIG. 4 or FIG. 5, the region intermediate between the first region 8 and the second region 9, the peripheral region 6 other than the first region 8 and the second region 9, and the intermediate region 7 between each of the first refractive region 2 and the second refractive region 3 has a prescription refractive power. Preferably, in some embodiments, all of the regions in the ophthalmic lens 1 where the first refractive region 2 and the second refractive region 3 are not arranged (the central region 5 shown in FIG. 1, FIG. 2, FIG. 4 or FIG. 5, the region intermediate between the first region 8 and the second region 9, the peripheral region 6 other than the first region 8 and the second region 9, and the intermediate region 7 between each of the first refractive region 2 and the second refractive region 3) may have a prescription refractive power. The gaps between the first refractive regions 2 and / or the second refractive regions 3 are all set to have a prescribed refractive power, which can provide better visual effects to patients, thereby improving patient compliance and improving the effectiveness of myopia management and control. In particular, when the gaps between the first refractive regions 2 and / or the second refractive regions 3 are continuous, better visual effects can be provided to patients, and the effectiveness of myopia management and control can be further improved.

[0050] Preferably, in some embodiments, each first refractive region 2 may have a refractive power equal to the prescription power plus a positive refractive power, i.e., the overall refractive power of the lens corresponding to the first refractive region 2 is more positive than the prescription power. Herein, this positive refractive power plus the prescription power is referred to as the add power of the first refractive region. Additionally or alternatively, in some embodiments, each second refractive region 3 may have a refractive power equal to the prescription power plus a positive refractive power, i.e., the overall refractive power of the lens corresponding to the second refractive region 3 is more positive than the prescription power. Herein, this positive refractive power plus the prescription power is referred to as the add power of the second refractive region. As a result, in the first refractive region 2 and the second refractive region 3, the refractive power (e.g., -0.75D) in a specific microregion surrounding the central region 5 is added so as to be more positive than the refractive power (e.g., -3.5D) of the central region 5, thereby forming a myopic defocus in the peripheral retina that can be perceived by the retina but not by the brain, thereby controlling axial growth without affecting or significantly affecting visual quality, and preventing myopia or preventing or delaying the deepening of myopia.

[0051] In some embodiments, each of the first refractive regions 2 may have a uniform refractive power or different refractive powers. Each of the second refractive regions 3 may have a uniform refractive power or different refractive powers. In some embodiments, the refractive powers of the first refractive regions 2 and the second refractive regions 3 may all be the same.

[0052] In some embodiments, the refractive power of the first refractive region 2 or the second refractive region 3 may be constant, gradually increase or decrease, or increase or decrease in stages with increasing radial distance along the radial direction of the ophthalmic lens. The expression "radial direction of the lens" in this disclosure refers to the direction from the lens center point to the outer periphery in a lens projection diagram. "Increasing or decreasing in stages" means that the first refractive region 2 or the second refractive region 3 arranged in several adjacent patterns (the "pattern" will be described later) may have a first refractive power, and the first refractive region 2 or the second refractive region 3 in several patterns outside the several patterns may have a second refractive power. The second refractive power may be greater or smaller than the first refractive power. Exemplarily, the first refractive region 2 and the second refractive region 3 may have a refractive power that gradually or gradually increases or decreases with increasing radial distance along the radial direction of the ophthalmic lens as a whole.

[0053] As described above, when the refractive power of the first refractive region 2 or the second refractive region 3 varies with radial distance, in some embodiments, it is preferable that the dimensions of the first refractive region 2 or the second refractive region 3 also vary with radial distance, and that the direction of change in the dimensions is opposite to the direction of change in the refractive power. In this disclosure, the dimensions of the first refractive region 2 or the second refractive region 3 refer to the dimensions of the figure projected onto the lens, for example, the maximum dimension. The term "maximum dimension" in this disclosure is understood to mean the largest dimension of the figure in each direction. If the projected figure of each refractive region shown in FIG. 1 is circular, the dimension may refer to its diameter. For example, in some cases, when the refractive power of the first refractive region 2 or the second refractive region 3 gradually decreases or decreases in steps with increasing radial distance, the dimensions of the first refractive region 2 or the second refractive region 3 may gradually increase or increase in steps with increasing radial distance. This allows for the maintenance of a nearly constant, low-intensity "image jump" across the entire lens, providing the wearer with a good visual effect, facilitating wearer adaptation, and improving wearing compliance.

[0054] The image jump can be simply expressed as the product of the add power of a single first or second refractive region and the corresponding maximum dimension (e.g., diameter) of the projection on the lens. In this case, the term "substantially constant" means that the coefficient of variation of the product of the first and second refractive regions is less than 30%, preferably less than 25%, and more preferably less than 20% over the entire area in which the first and second refractive regions are arranged on the lens (e.g., over the entire first and second regions). Those skilled in the art will understand that the coefficient of variation (CV) refers to the ratio of the standard deviation to the mean value. It will also be understood that, in addition to the above-described method of varying with radial distance, other methods can be used to design the add power and maximum dimension of each first or second refractive region to achieve a desired image jump change. In some embodiments, the image jump change of the outer second refractive region can be made more constant to improve peripheral visual quality. The image jump of a single second refractive region is expressed as the product of the add power of a single second refractive region and its maximum dimension. In some embodiments, the coefficient of variation of the image jumps of the second refractive regions throughout the entire second region may be less than 15%, preferably less than 12%, and more preferably less than 10%. In some embodiments, to ensure the myopia control effect of the peripheral second refractive regions, the coefficient of variation of the image jumps of the second refractive regions throughout the entire second region may be greater than 1%, preferably greater than 2%, and more preferably greater than 3%. In some embodiments, the range of the coefficient of variation of the image jumps of the second refractive regions can be set by arbitrarily combining the upper and lower limits.

[0055] Preferably, the addition power for the central region 5 of the first refractive region 2 or the second refractive region 3 can be selected from the range of +1.0D to +10.0D, for example, +1.0D, +1.5D, +2.5D, +3.0D, +3.5D, +4.0D, +4.5D, +5.0D, +5.5D, +6.0D, +6.5D, +7.0D, +7.5D, +8.0D, +8.5D, +9.0D, +9.5D or +10.0D.

[0056] In some exemplary embodiments, each of the first refractive region 2 or the second refractive region 3 may be a microlens added to the original lens, for example, a convex lens. Optionally, the first refractive region 2 or the second refractive region 3 may have a contour that matches the original lens, i.e., not protruding from the original lens. In this case, the first refractive region 2 or the second refractive region 3 may have a refractive index different from that of the original lens. For example, the first refractive region 2 or the second refractive region 3 may be made using a material different from that of the original lens, or may be made by adjusting the ion concentration to adjust the refractive index of different regions when polymerizing the lens material, or may be made by irradiating specific regions with ultraviolet light to repolymerize them, thereby changing the refractive index.

[0057] When the plurality of first refractive regions and the plurality of second refractive regions are both microlenses, the plurality of first refractive regions are considered to be microlenses near the center of the ophthalmic lens, and the plurality of second refractive regions are considered to be microlenses far from the center of the ophthalmic lens, where near and far are relative terms, not absolute terms.

[0058] In some embodiments, the projection of each first refractive region 2 or second refractive region 3 on the lens may be a perfect circle, a flattened circle (ellipse), a polygon, or the like. In the case of a polygon, the number of sides may be six or more. As shown in FIG. 1 , when the first refractive region 2 is circular, any two adjacent first refractive regions 2 may be adjacent to each other, and it can also be said that the multiple first refractive regions 2 are provided without any gap between them. In the present disclosure, it will be understood by those skilled in the art that expressions such as "adjacent to", "adjacent to", or "zero pitch" should include actual situations in which there is a certain amount of error due to, for example, measurement or processing.

[0059] In some embodiments, the maximum dimension of the projection of each first refractive region 2 or second refractive region 3 on the lens can be independently selected from the range of 0.5-2.2 mm, and may be, for example, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2.0 mm, 2.1 mm, or 2.2 mm, or any value therebetween. In some embodiments, if the projection of each first refractive region 2 or second refractive region 3 on the lens is circular, the diameter of the circle is the maximum dimension, and may be 0.5-2.2 mm. In some exemplary embodiments, the areas of the projections of the multiple second refractive regions 3 on the ophthalmic lens may be equal. In some exemplary embodiments, the areas of the projections of the multiple first refractive regions 2 on the ophthalmic lens may be equal. Alternatively, in some exemplary embodiments, the areas of the projections on the ophthalmic lens of at least some of the plurality of first refractive regions 2 or the plurality of second refractive regions 3 are equal.

[0060] For example, the first refractive region 2 or the second refractive region 3 may each have a surface shape selected from a spherical surface, an aspherical surface, or a toric surface. The first refractive regions 2 may have the same surface shape or different surface shapes. The second refractive regions 3 may have the same surface shape or different surface shapes.

[0061] It will be understood by those skilled in the art that the shapes, pitches, and other dimensions of each region of the ophthalmic lens discussed in this disclosure refer to the shape and dimensions of the ophthalmic lens or the planar projection in the front view of the ophthalmic lens, for example, as shown in the drawings. In this disclosure, the radius of curvature of the surface of the ophthalmic lens is much larger than the dimensions of each refractive region, so that the portion disposed in each refractive region can be considered to be substantially flat, and thus the projection of each refractive region described in this disclosure onto the ophthalmic lens can be considered as the projection onto the front view of the ophthalmic lens. In some embodiments, the first refractive region 2 and the second refractive region 3 may be disposed on the outer surface (i.e., the surface away from the eye) of the ophthalmic lens, and the front view of the ophthalmic lens shown in the drawings is the planar projection of the outer surface. Of course, in other embodiments, the first refractive region 2 and the second refractive region 3 may be disposed on the inner surface (i.e., the surface closer to the eye) of the ophthalmic lens, and the front view of the ophthalmic lens shown in the drawings is the planar projection of the inner surface.

[0062] While Figure 1 shows the central region 5 as a circular region centered at the center of the ophthalmic lens 1, in some other embodiments, the central region 5 may be a polygon or other rotationally symmetric shape. The maximum dimension of the central region 5 may be 3.0-11.0 mm, such as 3.0 mm, 4.0 mm, 5.0 mm, 6.0 mm, 7.0 mm, 8.0 mm, 9.0 mm, 10.0 mm, or 11.0 mm, or any value therebetween. When the central region 5 is circular, as shown in Figure 1, the diameter of the central region 5 may be 3.0-11.0 mm.

[0063] 1, the first region 8 surrounds the central region 5, and its inner edge is the same as the outer edge of the central region 5. Both regions are in contact with the inner sides of the first refractive regions 2 in the innermost ring, and their outer edges are in contact with the outer sides of those first refractive regions 2, as shown by dashed lines in the figure. In this case, the first region 8 is a ring-shaped region centered at the center of the ophthalmic lens. In some embodiments, the diameter of the inner edge of the first region may be selected from the range of 3.0 to 11.0 mm, and the diameter of the outer edge may be selected from the range of 15.0 to 28.6 mm.

[0064] As shown in FIG. 1 , the second region 9 surrounds the first region 8 and is also a ring-shaped region centered on the center of the ophthalmic lens, with its inner edge contacting the inner side of the innermost second refractive region 3 and its outer edge contacting the outer side of the outermost second refractive region 3, as indicated by the dashed lines in the figure. The second region 9 is farther from the central region 5 than the first region 8. While FIG. 1 shows the second region 9 surrounding the first region 8, it will be understood that the present invention is not limited thereto. In some embodiments, the second region 9 can partially surround the first region 8, for example, as will be described in detail with reference to FIG. 4 .

[0065] A plurality of first refractive regions 2 are arranged in a first region 8 close to the central region 5, and a plurality of second refractive regions 3 are arranged in a second region 9 far from the central region 5, and in some exemplary embodiments, the density of the first refractive regions in the first region can be appropriately designed to be greater than the density of the second refractive regions in the second region, in order to suppress the progression of refractive error of the eye and satisfy clear vision after wearing.

[0066] This density can be expressed as a percentage of the total area. In other words, the percentage of the total area of ​​the plurality of first refractive regions 2 in the first region is greater than the percentage of the total area of ​​the plurality of second refractive regions 3 in the second region; that is, the percentage of the total area of ​​the plurality of first refractive regions 2 to the area of ​​the first region is greater than the percentage of the total area of ​​the plurality of second refractive regions 3 to the area of ​​the second region. In the present disclosure, the expression "percentage of the total area" refers to the ratio of the sum of the areas of all micro-refractive regions (i.e., the first refractive regions 2 or the second refractive regions 3) in one region to the total area of ​​the region. In some embodiments, the density may be expressed in terms of density or pitch. That is, the density of the first refractive regions 2 in the first region may be greater than the density of the second refractive regions 3 in the second region. That is, overall, the arrangement between the first refractive regions 2 is closer; for example, overall, the average value of the pitch between a first refractive region 2 and its surrounding first refractive regions is smaller than the average value of the pitch between a second refractive region 3 and its surrounding second refractive regions; that is, the average pitch between multiple first refractive regions 2 is smaller than the average pitch between multiple second refractive regions 3. The density of refractive regions means the number of refractive regions per unit area. The pitch between two refractive regions means the distance between the points where the two refractive regions are closest to each other. The average pitch between the plurality of first refraction regions 2 refers to the average value of the sum of the pitches between each first refraction region 2 of the plurality of first refraction regions 2 and the first refraction region 2 nearest thereto, divided by the total number of first refraction regions 2. Here, the nearest first refraction region 2 refers to the first refraction region 2 with the smallest pitch in a pattern when the plurality of first refraction regions 2 are arranged in a pattern as described in detail later, or the first refraction region 2 with the smallest pitch in each direction in other cases. The average pitch between the plurality of second refraction regions 3 is similarly defined. In some cases, the dimensions of each refraction region are relatively small and the difference in dimensions between different refraction regions is not that large (for example, the maximum value does not exceed about 2-3 times the minimum value), so the degree of closeness of the first refraction regions 2 and the second refraction regions 3 can be described in terms of density or pitch.

[0067] This allows the multiple first refractive regions 2 to form a dense addition (i.e., adding a positive refractive power to the prescribed refractive power) around the central region 5. The present application achieves better myopia control effects by providing a dense myopia defocus region near the central optical region (e.g., the central region 5) (e.g., the first region, corresponding to the sensitive retinal region). Furthermore, maintaining an appropriate spacing between the second refractive regions 3 (e.g., setting a lower area ratio in the second region) in a region farther from the central optical region (e.g., the second region) not only improves compliance among myopic patients but also minimizes the difference in myopia management and control effects between different patients, making it easier to manage and control the progression of myopia.

[0068] In some embodiments, the proportion of the total area of ​​the multiple first refractive regions 2 within the first region may be 60% or more and 78.5% or less, preferably more than 63% and 78.5% or less, and more preferably more than 66% and 78.5% or less.

[0069] In some embodiments, the proportion of the total area of ​​the plurality of second refractive regions 3 within the second region is less than 60%, preferably less than 57%, more preferably less than 54%.

[0070] The inventors have also found that myopic defocus formed by dense addition in a ring-shaped region formed from an inner edge diameter of 3.0 mm (e.g., 4.0 mm, 5.0 mm, 6.0 mm, 7.0 mm, 8.0 mm, 9.0 mm, 10.0 mm, 11.0 mm or any value therebetween) centered on the center of the ophthalmic lens to an outer edge diameter of 28.6 mm (e.g., 15.0 mm, 19.8 mm, 24.2 mm or any value therebetween) (e.g., dense addition in at least a ring-shaped region formed from an inner edge diameter of 9.0 mm centered on the center of the ophthalmic lens to an outer edge diameter of 15.0 mm) can provide more stimulation to the retina and suppress axial elongation. In other words, the first region may include, or may essentially include, or may consist of, a ring-shaped region formed from an inner edge diameter of 3.0 mm to an outer edge diameter of 28.6 mm, centered on the center of the above-mentioned ophthalmic lens.

[0071] The design of the first refractive region 2 will be briefly described below using an example. Assume that the prescription refractive power is -3.5D, the diameter of the central region 5 of the lens is 10 mm, and the first refractive region 2 is located approximately 5 mm from the center. For example, as shown in FIG. 1, the first refractive region 2 may be located at the boundary abutting the 10 mm diameter central region 5 and installed around the circumference. The number of first refractive regions 2 may be π×d1 / d2, where d1 is the diameter of the central region 5 and d2 is the maximum dimension (e.g., diameter) of the first refractive region 2. When d2 is 1.2 mm, the number of first refractive regions 2 can be calculated as 26. Of course, in some embodiments, the number of first refractive regions 2 may be 26-35, and the maximum dimension of the first refractive region 2 and the diameter of the central region 5 can be designed accordingly. By providing the first refractive regions 2 densely around the central region 5, it is possible to effectively delay the increase in axial length of the eye, thereby achieving a higher myopia suppression effect.

[0072] In some embodiments, dense addition is preferably performed within a ring-shaped region centered on the center of the ophthalmic lens, extending from a 9 mm diameter inner edge to a 15 mm diameter outer edge, such that the incident light beam passing through the ring-shaped region is projected approximately onto an area between 10 and 20 degrees near the fovea of ​​the retina's macular center. In line with this, research has shown that applying competitive myopic defocus signals closer to the fovea of ​​the retina has a stronger and more consistent effect on mitigating axial growth of the eye (EL Smith III et al., Eccentricity-dependent effects of simultaneous competing defocus on emmetropization in infant rhesus monkeys, Vision Research, 17(3):32-40, 2020). This is evident from the experimental results shown in Figure 7. Figure 7 shows the integral of field curvature (negative absolute value of field curvature) calculated using the optical simulation software Optic Studio Zemax when lenses with different microlens arrangements are placed on the surface of a Liou & Brenna model eye. 7, the lens of the present invention provides a densely packed microlens (i.e., first refractive region 2) in a region corresponding to the retinal defocus-sensitive region, thereby providing a greater defocus stimulus to the retina, as shown in a preferred example (where the densely packed microlens is approximately located in a ring-shaped region with an inner diameter of 9.5 mm and an outer diameter of 14 mm). Small-scale experiments have found that the ophthalmic lens of the present application can effectively promote choroidal thickening (average choroidal thickening of 6±6% over two weeks), and it is currently believed that short-term choroidal thickening is associated with long-term axial growth control effects.

[0073] Considering that the lens may move up and down during wear, dense addition may be performed within the ring-shaped region with extra width to ensure coverage of the retinal defocus sensitive area. Overall, the multiple first refractive regions 2 may be provided within a ring-shaped region with an inner diameter of 3.0 mm to an outer diameter of 28.6 mm, for example, all of them being provided within the ring-shaped region. Exemplarily, the multiple first refractive regions 2 may be provided within a ring-shaped region with an inner diameter of 3.0 mm to an outer diameter of 24.2 mm, for example, all of them being provided within the ring-shaped region. Exemplarily, the multiple first refractive regions 2 may be provided within a ring-shaped region with an inner diameter of 3.0 mm to an outer diameter of 19.8 mm, for example, all of them being provided within the ring-shaped region. In some embodiments, the plurality of first refractive regions 2 are provided within a ring-shaped region having an inner diameter of 9.0 mm and an outer diameter of 15.0 mm, centered at least on the center of the ophthalmic lens, or the first region includes a ring-shaped region having an inner diameter of 9.0 mm and an outer diameter of 15.0 mm, centered at least on the center of the ophthalmic lens. To achieve a densely packed effect within the ring-shaped region, preferably, a portion or all of the plurality of first refractive regions 2 can fill the ring-shaped region. Preferably, the proportion of the total area of ​​the first refractive regions 2 in any one first pattern (the details of "first pattern" will be described later) within the ring-shaped region having an inner diameter of 9.0 mm and an outer diameter of 15.0 mm is more than 70% and less than 78.5%, preferably more than 72% and less than 78.5%. In some embodiments, at least some of the first refractive regions 2 are arranged in a ring-shaped region centered on the center of the ophthalmic lens, with an inner diameter of 9.5 mm and an outer diameter of 14.0 mm, or at least some are arranged within a ring-shaped region centered on the center of the ophthalmic lens, with an inner diameter of 11.0 mm and an outer diameter of 14.0 mm.

[0074] 1, the plurality of first refractive regions 2 are arranged in one ring-shaped region (referred to as a first pattern) represented by a first ring 21, and the plurality of second refractive regions 3 are arranged in five ring-shaped regions (referred to as a second pattern) represented by second rings 31. That is, in FIG. 1, the first region 8 includes only one first pattern, which is a ring-shaped region represented by the first ring 21, and the second region 9 includes five second patterns, which are a total of ring-shaped regions represented by five second rings 31.

[0075] For ease of illustration, it will be understood by those skilled in the art that in each drawing of the present application, ring-shaped patterns (e.g., a first ring 21, a second ring 31, and first patterns 2a and 2b described later) are all simply shown as center lines of the respective rings. For example, in FIG. 1, the first ring 21 as a ring-shaped pattern refers to a ring-shaped pattern having the center at the center of the ophthalmic lens 1, the center line being the circle indicated by reference numeral 21 in FIG. 1, and the inner and outer edges thereof contacting the first refractive region 2. It can be seen that the center of the first refractive region 2 is located on the center line of the first ring 21. Similarly, in FIG. 1, the center of the second refractive region 3 is located on the center line of the second ring 31. Each second ring 31 as a ring-shaped pattern refers to a ring-shaped pattern having the center at the center of the ophthalmic lens 1, the center line being the corresponding circle indicated by reference numeral 31 in FIG. 1, and the inner and outer edges thereof contacting the second refractive region 3 located on the corresponding center line. 1, the first region 8 is the first ring 21 whose inner and outer edges are in contact with the first refractive region 2, and the second region 9 is a region including a plurality of second rings 31 and the spaces between them, i.e., a ring-shaped region between the inner edge of the second ring 31 closest to the center of the lens and the outer edge of the second ring 31 farthest from the center of the lens. The first and second regions in each of the exemplary embodiments in FIGS. 2, 4-5, and 8A-8E described below are all defined in the same way as in FIG. 1.

[0076] While FIG. 1 illustrates the first region including one first pattern and the second region including five second patterns, in other embodiments, the first region and / or the second region may include more or fewer patterns. That is, in some embodiments, the first region may include one or more first patterns (e.g., one, two, three, four, or five first patterns), and some or all of the multiple first refractive regions in the first region are arranged in the one or more first patterns. Similarly, the second region may include one or more second patterns (e.g., one, two, three, four, five, six, seven, or eight second patterns), and some or all of the multiple second refractive regions in the second region are arranged in the one or more second patterns. In some embodiments, the number of first patterns may be 1-4, and the number of second patterns may be 1-15.

[0077] As shown in Fig. 1, one or more first patterns may be arranged concentrically with the center of the ophthalmic lens 1. For simplicity's sake, each first pattern includes only the minimum number of first refractive regions that can approximately arrange the pattern. For example, the first pattern in Fig. 1 includes only the innermost first refractive region, i.e., the first refractive region is only one circumference in the radial direction, and does not include more first refractive regions. Fig. 1 shows a total of six ring-shaped patterns, including one first pattern, the first ring 21. One or more second patterns may be arranged concentrically with the center of the ophthalmic lens 1. There is no clear limit to the maximum size of the second pattern, and those skilled in the art can select an appropriate range as needed. As with the first patterns, for simplicity, each second pattern includes only the minimum number of second refraction regions that can approximately arrange the pattern; for example, the second pattern in Figure 1 has only one second refraction region around the circumference in the radial direction and does not include more second refraction regions; therefore, Figure 1 has five second patterns, i.e., five second rings 31.

[0078] FIG. 2 shows a variation of the ophthalmic lens of FIG. 1, in which the first region includes two first patterns instead of one first pattern.

[0079] Specifically, FIG. 2 shows a case where a plurality of first refractive regions 2 are arranged in two first patterns. Referring to a portion of FIG. 2 shown in FIG. 3, the first refractive regions 2 may be arranged in a first pattern 2a close to the central region 5 (hereinafter, for convenience of explanation, referred to as the inner first pattern 2a) and a first pattern 2b away from the central region 5 and adjacent to the first pattern 2a (hereinafter, for convenience of explanation, referred to as the outer first pattern 2a). The first refractive regions in the inner first pattern 2a may be in contact with each other or may be just adjacent to each other. Just adjacent means that there is a small pitch between these first refractive regions, for example, smaller than the pitch between the second refractive regions 3. The first refractive regions in the outer first pattern 2b may be in contact with each other or may be just adjacent to each other. To enhance the dense addition effect of the first refractive region 2, the first refractive region in the inner first pattern 2a and the first refractive region in the outer first pattern 2b can be made to contact each other both within the pattern and between the patterns. In this case, the diameter of the first refractive region in the inner first pattern 2a can be made slightly smaller than the diameter of the first refractive region in the outer first pattern 2b, and thus the number of first refractive regions in the inner first pattern 2a and the outer first pattern 2b can be made equal. In this case, if the inner first pattern 2a and the outer first pattern 2b are both considered to be ring-shaped regions with the circles indicated by 2a and 2b in the figure as their center lines, the inner first pattern 2a and the outer first pattern 2b will also partially overlap. Of course, in other embodiments, the first refractive regions in the inner first pattern 2 a and the first refractive regions in the outer first pattern 2 b may be set to have the same diameter, and thus the number of first refractive regions in the inner first pattern 2 a may be less than the number of first refractive regions in the outer first pattern 2 b. While Figures 2 and 3 illustrate an embodiment in which the first refractive regions 2 are arranged in two first patterns as described above, it is understood that the first refractive regions 2 may be arranged in more first patterns, and the two or more first patterns may not overlap, may be adjacent to each other, or may have a constant pitch.

[0080] In the embodiments shown in FIGS. 1 and 2, each of the first and second patterns is a ring-shaped pattern concentric with the center of the ophthalmic lens. However, in some other embodiments, the first and / or second patterns may not be concentric with the center of the ophthalmic lens, or may have other shapes, such as a sector shape, a substantially ring shape, a polygonal shape, or other shapes rotationally symmetrical about the center of the lens. Furthermore, when there are multiple first patterns and multiple second patterns, the multiple first patterns and / or multiple second patterns may be identical to or different from each other. In these cases, the first and second regions may not be ring-shaped, but may have shapes corresponding to the shapes and arrangements of the first and second patterns. For example, the first and second regions may be the smallest regions formed to include all of the first patterns or all of the second patterns, respectively. The term "approximately ring-shaped" means that most of the first refractive regions 2 are arranged on one or more circumferences, and the remaining first refractive regions 2 are outside the circumferences, for example, arranged according to a certain rule (e.g., at equal intervals) at positions inside the circumference but just adjacent to the circumference, and / or arranged according to a certain rule (e.g., at equal intervals) at positions outside the circumference but just adjacent to the circumference, for example, multiple first refractive regions 2 may be arranged in a shape similar to the outer contour of a sunflower.

[0081] In some embodiments, the first refractive region 2 and the second refractive region 3 may not be uniformly distributed around the entire periphery of the central region 5 as shown in FIGS. 1 and 2 . For example, they may be distributed only on one side of the central region 5, such as the upper, lower, left, or right side in the figures, or in a portion of the periphery of the central region 5. They may be provided symmetrically or asymmetrically with respect to the central region 5. The specific distribution can be adjusted depending on the wearer's visual acuity. In some examples, the first pattern and / or the second pattern, and the first region and / or the second region including the same, may have a fan-ring shape, as shown in FIG. 4 . In FIG. 4 , the second refractive region 3 may not be provided in region B. Although not shown, in other embodiments, the first refractive region may not be provided in region B. In some embodiments, the region B may have a refractive power different from the prescribed refractive power for near vision tasks, so that the wearer does not need to move his / her head significantly when switching between far vision (e.g., looking at a blackboard) and near vision (e.g., looking at a book on a desk). In this case, the second region may be a ring-shaped region whose inner edge is in contact with the inside of the second refractive region 3 in the second ring 31 closest to the center of the lens and whose outer edge is in contact with the outside of the second refractive region 3 in the second ring 31 farthest from the center of the lens, minus the region B, i.e., it has a fan ring shape, and each second pattern is also a fan ring pattern.

[0082] As described above, in FIG. 1, the first refractive region 2 is arranged in one first ring 21 (first pattern), and the second refractive region 3 is arranged in five second rings 31 (second pattern). The pitch between adjacent rings (patterns) is equal. Below, an example of specific values ​​for FIG. 1 will be described. The diameter of the largest second ring 31 may be 30 mm (radius 15 mm), the diameter of the central region 5 may be 10 mm (radius 5 mm), the diameters of the first refractive region 2 and the second refractive region 3 may both be 1.2 mm, and the pitch between adjacent rings may be (15-5-0.6) / 5-1.2≒0.7 mm. That is, the spacing between adjacent rings (i.e., the spacing between two refractive regions on adjacent rings along the radial direction) is approximately 0.7 mm.

[0083] In this specification, the pitch between adjacent patterns (sometimes simply referred to as pattern pitch) may refer to the distance between a refractive region in one pattern and a refractive region in another adjacent pattern along the radial direction of the lens, or may refer to the distance between the innermost radial distance of the outer pattern and the outermost radial distance of the inner pattern along the radial direction of the lens. When the refractive regions in different patterns are all distributed radially along the radial direction as in FIG. 1, the pattern pitch can be determined by two adjacent refractive regions along the radial direction. When the refractive regions in different patterns are not distributed radially along the radial direction, the pattern pitch may be half the difference between the diameter of the innermost contour of the outer pattern in a given radial direction and the diameter of the outermost contour of the inner pattern in the given radial direction.

[0084] In some embodiments, the pitch between adjacent rings or patterns may not all be equal, may be partially equal, or may all be different. For example, the pitch between any two adjacent second patterns may be equal to the pitch between adjacent first and second patterns and / or the pitch between any two adjacent first patterns (if there are two first patterns).

[0085] In some embodiments, for example, the pitch between adjacent patterns (including the first pattern and the second pattern) may be equal to 0.2 to 1.5 times the diameter of the first refractive region 2 or the second refractive region 3, e.g., 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, or 1.5 times.

[0086] In some embodiments, when there are a plurality of first patterns (e.g., first rings 21), two adjacent first patterns may be adjacent to each other, may be closely adjacent, or may have a slightly larger pitch. In some embodiments, the pitch between any adjacent first patterns may be 0.5 mm or less. In some embodiments, the pitch between adjacent patterns (including the first pattern and the second pattern) may gradually increase along the direction away from the central region 5. In other embodiments, the first patterns may have the same first pitch, and the second patterns may have the same or different second pitch, and the first pitch may be smaller than the second pitch.

[0087] In some embodiments, when there are a plurality of second patterns (e.g., second rings 31), the pitch between adjacent second patterns may be equal. Of course, the pattern pitch may be greater closer to the outer second patterns.

[0088] In some embodiments, the pitch between any two adjacent first patterns (if any), the pitch between any two adjacent second patterns (if any), and / or the pitch between adjacent first and second patterns may be zero. Adjacent patterns with a zero pitch may be considered to be adjacent. As shown in FIG. 5 and its partial view (FIG. 6), the first region 8 includes two first rings 21 (first patterns), and the second region 9 includes six second rings 31 (second patterns). Adjacent rings (either the first rings 21 or the second rings 31) may be adjacent to each other or may be just adjacent to each other. In fact, in this case, the first and second rings cannot be clearly distinguished from each other. However, when viewed overall, it can be seen that the pitch between the outer refractive regions is clearly greater than the pitch between the inner refractive regions. For clarity, a pattern in which the pitch between at least two adjacent refractive regions within the same pattern is less than 0.5 mm may be referred to as a "first pattern," and a pattern having refractive regions with a larger pitch may be referred to as a "second pattern." In one embodiment, there is little or only a small spacing (less than 0.5 mm) between the refractive regions in the innermost pattern and its adjacent pattern, so the number of first rings 21 is considered to be two and the number of second rings 31 is considered to be six. The pitch between the first rings 21 is zero, the pitch between the second rings 31 is zero, and the pitch between the first rings 21 and the second rings 31 is also zero. Furthermore, as shown in FIG. 5 , the closer to the outside, the larger the size of the first refractive region 2 or second refractive region 3 within the first ring 21 or second ring 31, and the larger the pitch between adjacent first refractive regions 2 or second refractive regions 3 within the first ring 21 or second ring 31.

[0089] 1 shows that adjacent first refractive regions 2 in the first pattern are adjacent to each other (arranged without any gaps), but in some embodiments, in at least one first pattern, the first refractive regions 2 may have a small pitch between them, that is, the adjacent first refractive regions 2 may have a small pitch (for example, less than 0.5 mm, e.g., a pitch of 0.4 mm, 0.3 mm, 0.2 mm, or 0.1 mm) along the extending direction of the first pattern. In any case, the pitch (e.g., average pitch) between the first refractive regions 2 may be smaller than the pitch (e.g., average pitch) between the second refractive regions 3. For example, the pitch (e.g., average pitch) between the first refractive regions 2 along the extension direction of the first pattern is smaller than the pitch (e.g., average pitch) between the second refractive regions 3 along the extension direction of the second pattern, but in a certain direction (e.g., radial direction), the pitch (e.g., average pitch) between the first refractive regions 2 may be smaller, equal to, or larger than the pitch (e.g., average pitch) between the second refractive regions 3 in the same direction.

[0090] In some embodiments, the second refractive regions 3 may be arranged in one or more second patterns as a plurality of island-like regions spaced apart from one another. In some embodiments, in at least one second pattern, the pitch between the second refractive regions 3 is greater than the maximum pitch between the first refractive regions 2. The inventors have found that ensuring an appropriate spacing between the second refractive regions 3 not only improves compliance and visual comfort for patients who wear the lenses, but also minimizes differences in myopia management and control effects between different patients. Without wishing to be limited by any theory, the inventors have found that it is important to leave sufficient pitch between the second refractive regions 3 because if the myopic defocus range is too large, the focused light rays on the retina may be insufficient, making it difficult for the eye to determine whether to turn the retina forward or backward to accommodate and find a focal point, resulting in significant differences in effectiveness between different patients.

[0091] In some embodiments, the second refractive regions 3 in each second pattern can all be set to the same pitch, for example, the pitch between the second refractive regions 3 in different second patterns can be equal, and thus, the closer to the outside, the greater the number or size of the second refractive regions 3 on the second pattern.

[0092] In some embodiments, when viewed as a whole, all patterns, including the first pattern and the second pattern, have a larger pitch between two adjacent refractive regions in the pattern, as shown in, for example, FIGS. 1, 4, and 5, as the pattern is further from the center of the ophthalmic lens. That is, of any two adjacent patterns, the pitch between the refractive regions in the pattern relatively closer to the center of the ophthalmic lens is smaller than the pitch between the refractive regions in the pattern farther from the center of the ophthalmic lens. Of course, the above rule may apply only to the second pattern. Specifically, when there are multiple first patterns, the first refractive regions in each first pattern may be adjacent or just adjacent to each other, as shown in, for example, FIG. 2, to ensure dense addition in the portion corresponding to the retinal defocus sensitive region. In this case, the pitch between the second refractive regions in the second pattern farther from the center of the ophthalmic lens may be larger. In one exemplary embodiment, from the innermost pattern to the outermost pattern, the pitch between two adjacent refractive regions within a pattern gradually increases from zero to less than 2.00 mm, preferably less than 1.90 mm, more preferably less than 1.80 mm, e.g., 1.20 mm.

[0093] In the illustrated embodiment, the first refractive regions 2 are uniformly arranged along the extension direction of the first pattern. However, in embodiments not shown, the first refractive regions 2 may be non-uniformly arranged along the extension direction of the first pattern. The extension direction of the first pattern is the extension direction of the lines generally formed by the first pattern. For example, in FIGS. 1, 2, and 5, if all of the first patterns are formed as rings 21, the extension direction of the first pattern may be understood as the extension direction of the lines forming the rings, i.e., the circumferential direction. In other embodiments, a single first pattern may further include several non-uniformly arranged first refractive regions in addition to these uniformly arranged first refractive regions. The non-uniformly arranged first refractive regions may be discretely distributed along the extension direction of the first pattern and may have a relatively large pitch between them, but may be adjacent to or just adjacent to the first refractive regions 2 that are closely arranged along the extension direction of the first pattern.

[0094] In the illustrated embodiment, the second refractive regions 3 are uniformly arranged along the extension direction of the second pattern. However, in embodiments not shown, the second refractive regions 3 may be non-uniformly arranged along the extension direction of the second pattern. The extension direction of the second pattern is the extension direction of the lines generally formed by the second pattern. For example, in FIGS. 1, 2, and 5, if the second patterns are all formed as rings 31, the extension direction of the second pattern may be understood as the extension direction of the lines forming the rings, i.e., the circumferential direction. In other embodiments, a single second pattern may further include several non-uniformly arranged second refractive regions in addition to these uniformly arranged second refractive regions. The non-uniformly arranged second refractive regions may be discretely distributed along the extension direction of the second pattern and may have a relatively large pitch between them, but they may be in contact with or immediately adjacent to the second refractive regions 3 arranged along the extension direction of the second pattern. Optionally, adjacent second patterns may have a slightly larger pitch without being abutting (ie, as shown in FIG. 5) or barely abutting (eg, as shown in FIGS. 1 and 2).

[0095] The design of the pitch between the refractive regions in each pattern has been described above, but the design of the proportion of the total area in each pattern will be described below. For example, preferably, the proportion of the total area of ​​the first refractive regions 2 in at least one first pattern or in each first pattern can be set to be 60% or more and 78.5% or less. Preferably, the proportion of the total area of ​​the first refractive regions 2 in at least one first pattern can be set to be 70% or more and 78.5% or less. Preferably, the proportion of the total area of ​​the first refractive regions 2 in at least two first patterns can be set to be 70% or more and 78.5% or less. In some embodiments, the proportion of the total area of ​​the second refractive regions 3 in at least one second pattern or in each second pattern can be set to be 30% or more but less than 60%, preferably 35% or more but less than 60%, and more preferably 40% or more but less than 60%. Preferably, when the second region includes multiple second patterns, the proportion of the total area of ​​the second refractive regions 3 in each second pattern can be set to be 30% or more but less than 60%.

[0096] In some embodiments, the proportion of the total area of ​​the first refractive regions in each first pattern is greater than the proportion of the total area of ​​the second refractive regions in each second pattern. When multiple patterns are included, the proportion of the total area of ​​the refractive regions included in each pattern may gradually decrease along a direction away from the center of the lens. For example, when the first region includes multiple first patterns, the proportion of the total area of ​​the first refractive regions in the first patterns closer to the center of the ophthalmic lens is greater than the proportion of the total area of ​​the first refractive regions in the first patterns farther from the center of the ophthalmic lens. For example, when the second region includes multiple second patterns, the proportion of the total area of ​​the second refractive regions in the second patterns closer to the center of the ophthalmic lens is greater than the proportion of the total area of ​​the second refractive regions in the second patterns farther from the center of the ophthalmic lens.

[0097] Furthermore, for example, in some embodiments, the lens can be divided into a plurality of sectorial regions, for example, 2 to 36 sectorial regions, for example, 2 to 18 sectorial regions, for example, 2 to 4 sectorial regions, for example, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, or 18 sectorial regions, with the center of the lens as the origin. In these sectorial regions, the first refractive region 2 may be provided so that each sectorial region is independent of the others, and the second refractive region 3 may be provided so that each sectorial region is independent of the others. For example, a method can be considered in which each of the first patterns, second patterns, first regions, and second regions described above is divided into a plurality of portions located in the plurality of sectorial regions, and the first refractive region 2 and the second refractive region 3 are provided in each portion. In other words, the first refractive region 2 may be disposed in different sectorial regions, and the second refractive region 3 may be disposed in different sectorial regions, and the first refractive region 2 and the second refractive region 3 may be disposed in different sectorial regions. For example, in some embodiments, the arrangement (e.g., shape, size, density, pitch, area ratio, and / or addition) of the first refractive region 2 and / or the second refractive region 3 in at least one of the plurality of sectorial regions is different from the arrangement in the other sectorial regions. In some embodiments, the first refractive region 2 and / or the second refractive region 3 in at least one sectorial region may be configured as any one of the above-described configurations, for example, shown in Figures 1-6 and 8A-8E, or the first refractive region 2 and / or the second refractive region 3 in at least some sectorial regions may be configured as multiple configurations, for example, shown in Figures 1-6 and 8A-8E, respectively.In some embodiments, among the plurality of fan-shaped regions, for example, in at least 20%-60% (e.g., 20%, 30%, 40%, 50%, 60%) of the fan-shaped regions, the proportion of the total area of ​​the plurality of first refractive regions 2 in the first region (or at least one first pattern) is 60% or more and 78.5% or less, preferably more than 63% and 78.5% or less, more preferably more than 66% and 78.5% or less, and even more preferably 70% or more and 78.5% or less, the proportion of the total area of ​​the plurality of second refractive regions 3 in the second region is less than 60%, preferably less than 57%, more preferably less than 54%, and the proportion of the total area of ​​the plurality of second refractive regions 3 in at least one second pattern included in the second region is 30% or more and less than 60%, preferably 35% or more and less than 60%, and more preferably 40% or more and less than 60%. In some embodiments, where the first region includes one or more first patterns and at least a portion of the first region is a first ring-shaped region centered on the center of the ophthalmic lens, having an inner edge diameter of 9 mm and an outer edge diameter of 15 mm, for example, in at least 20%-60% (e.g., 20%, 30%, 40%, 50%, 60%) of the plurality of fan-shaped regions, the percentage of the total area of ​​the first refractive region within any single first pattern within the first ring-shaped region is greater than 70% and less than 78.5%, preferably greater than 72% and less than 78.5%.

[0098] 1, the arrangement of the plurality of first refractive regions 2 and the plurality of second refractive regions 3 can be explained using the above-mentioned first pattern, second pattern, etc., or can be explained using a radial method. In other words, as shown in FIG. 1, the plurality of first refractive regions 2 and the plurality of second refractive regions 3 are distributed on a plurality of radial lines 4 originating from the center of the ophthalmic lens (i.e., the centers of the circles of these refractive regions are located on the radial lines 4). The reason for the radial distribution is that, particularly when the pattern pitch is small, after a user wears the eyeglass lens, the eyeglass lens has radial clear regions that are visible in all the upper, lower, nasal, and temporal directions, thereby satisfying the user's requirement for clarity of visibility in each of the upper, lower, nasal, and temporal directions.

[0099] In some embodiments, each ray 4 is distributed with first refractive regions 2 and second refractive regions 3. In some embodiments where the projection shapes of the first refractive regions 2 and the second refractive regions 3 on the ophthalmic lens are not circular, the centers of the first refractive regions 2 and the second refractive regions 3 (e.g., the centers of the shapes projected onto the ophthalmic lens) can be said to be located on the ray 4. On each ray 4, the number of first refractive regions can be less than, equal to, or greater than the number of second refractive regions. For example, if the number of rays 4 is 2n, these rays 4 form n straight lines. Of course, in other embodiments not shown, some of the multiple first refractive regions 2 and the multiple second refractive regions 3 may not be distributed on the ray, for example, the refractive regions on some rings may be alternately arranged with the refractive regions on adjacent rings. When the plurality of first refractive regions 2 and the plurality of second refractive regions 3 are both distributed on the radial line 4, the number of refractive regions on each ring is equal, and in this case, a radially continuous blank region, i.e., a radially continuous refractive correction region for distance vision, is formed other than the central optical region, which contributes to providing good visual quality. Optionally, the number of refractive regions may be smaller in the ring closer to the central region 5, and accordingly, the number of refractive regions may be larger in the ring farther from the central region 5. In some embodiments, as shown in FIG. 5, adjacent first refractive regions and / or adjacent second refractive regions on the same radial line may be adjacent to each other.

[0100] In a questionnaire survey on patient comfort, the ophthalmic lenses of the present application (e.g., lenses having a structure that forms a radially continuous distance correction zone in addition to the central optical zone described above) were rated higher after long-term wear (Table 1), and the questionnaire included questions about comfort during wear, presence or absence of double eyelids, presence or absence of fatigue, presence or absence of dizziness, headache, or inability to adapt, ease of adapting to wearing new lenses, whether or not the patient had any difficulty walking while wearing the lenses, and whether or not the patient could climb stairs while wearing the lenses (a total score of 10 points was calculated for each item, and all scores were averaged to obtain a total score of 10 points, with higher scores indicating higher comfort). Comparative ophthalmic lens 1 does not have a radially continuous distance correction zone.

[0101] Table 1 TIFF2025143516000002.tif48147

[0102] Optionally, in some embodiments, the first and second refractive regions 2 and 3 on each radial line may have gradually or stepwise increasing dimensions and gradually or stepwise decreasing add powers along the direction away from the central region 5. As described above, such an arrangement can be optically optimized and maintain a nearly constant low-intensity "image jump" throughout the lens without changing other parameters. Combined with the radially continuous distance correction regions, this arrangement can provide good visual effects for the subject, allowing for easy adaptation and high wear compliance. In some embodiments, the coefficient of variation of the image jumps of the multiple second refractive regions throughout the second region may be less than 15%, preferably less than 12%, and more preferably less than 10%. Furthermore, in some embodiments, to ensure the myopia control effect of the peripherally located second refractive regions, the coefficient of variation of the image jumps of the multiple second refractive regions throughout the second region is greater than 1%, preferably greater than 2%, and more preferably greater than 3%. In some embodiments, the upper and lower limits may be arbitrarily combined to set the range of the coefficient of variation of the image jumps of the plurality of second refractive regions.

[0103] For example, additional second refractive regions may be distributed between two adjacent rays 4, and these additional second refractive regions may be arranged in a regular pattern. For clarity, as shown in FIG. 8A , the pattern in which the additional second refractive regions are arranged is referred to as an additional pattern 41 in this specification. Optionally, the additional pattern 41 may be provided between each pair of adjacent rays 4. Alternatively, the additional pattern 41 may be provided between some pairs of adjacent rays 4, and no pattern (i.e., blank spaces) may be provided between other pairs of adjacent rays 4. In this case, as shown in FIG. 8B , the additional patterns 41 and blank spaces may be provided alternately. Overall, all the additional patterns 41 may be distributed divergently with respect to the central region 5. Each additional pattern 41 may be linear as shown, or may be curved in any manner.

[0104] Illustratively, instead of a plurality of rays 4, the plurality of first refractive regions and the plurality of second refractive regions may be distributed on a plurality of curves 42, as shown in, for example, FIGS. 8C-8D . In some embodiments, the centers of the first refractive region 2 and the second refractive region 3 (e.g., the centers of the figures projected onto the ophthalmic lens) may be located on the curves 42. These curves 42 may be distributed divergently with respect to the central region 5. That is, the distance between two intersection points m1 and m2 on adjacent curves 42 with an intersection circle (see the dashed line in the figures) centered on the center of the ophthalmic lens gradually increases as the diameter of the intersection circle increases. Illustratively, the same intersection circle may intersect all the curves 42, or the distance between the intersection points of any two adjacent curves 42 with the intersection circle may be equal. Illustratively, the plurality of curves 42 may be curved in the same direction, for example, counterclockwise (as shown in FIG. 8C ), or clockwise in other embodiments not shown. Of course, each curve 42 may have multiple curvature directions, and as shown in FIG. 8D , each curve 42 is shown to be wavy with approximately two curvatures. In other embodiments not shown, each curve 42 may be wavy with more curvatures. Note that these curvatures may be uniformly distributed in each curve 42, or may be unevenly distributed in each curve 42. For example, there may be less curvatures distributed in a portion closer to the central region 5, and more curvatures distributed in a portion farther from the central region 5. In some embodiments, adjacent first refractive regions and / or adjacent second refractive regions on the same curve may be in contact with each other.

[0105] In other embodiments not shown, the first refractive region 2 may be arranged in a first portion of a plurality of rays or curves (rays or curves as shown in the previous figures or similar rays or curves) originating from the center of the ophthalmic lens, and the second refractive region 3 may be arranged in a second portion, and the rays or curves of the first portion may not overlap or may partially overlap with the rays or curves of the second portion. In one example, the second refractive region 3 in each second pattern shown in Figure 1, Figure 2, Figure 4 or Figure 5 is moved a certain distance along the circumferential direction (i.e., moved a certain angle around the center of the lens), and the first refractive region 2 and the second refractive region 3 are each distributed in one of two sets of rays (at this time, the number of rays is one time more than shown in the figures) originating from the center of the ophthalmic lens.

[0106] Both the ray 41 and the curve 42 are formed by a single line. Optionally, instead of the ray 41 or the curve 42, the multiple first refractive regions and the multiple second refractive regions may be distributed on multiple compound lines 43, as shown in FIG. 8E . In some embodiments, the centers of the first refractive region 2 and the second refractive region 3 (e.g., the centers of the shapes projected onto the ophthalmic lens) may be located on the compound line 43. The multiple compound lines 43 may be distributed divergently with respect to the central region 5. The compound line 43 may be composed of multiple straight lines, multiple curved lines, or a combination of straight lines and curved lines. In the illustrated embodiment, the compound line 43 may include a main line extending along the radial direction of the ophthalmic lens and two branch lines extending outward from the end of the main line away from the center of the ophthalmic lens. The multiple compound lines 43 may be repeatedly arranged along the circumferential direction of the ophthalmic lens. That is, the intersection circle (see the dashed line in the figure) centered on the center of the ophthalmic lens and the intersection points m1, m2, m2 formed by the corresponding parts on the multiple composite lines 43 are n The distance is equal to.

[0107] In some embodiments, each of the rays or curves has a first refractive region and a second refractive region distributed thereon, and / or the rays or curves are uniformly distributed on the ophthalmic lens. In some embodiments, along the same ray or curve, the first refractive region has a uniform addition power and / or the second refractive region has a uniform addition power and / or the first and second refractive regions have a uniform addition power; or along the same ray or curve, the first refractive region has a uniform size and / or the second refractive region has a uniform size and / or the first and second refractive regions have a uniform size; or along the same ray or curve, the first refractive region has an opposite size to the addition power and / or the second refractive region has an opposite size to the addition power along the same ray or curve, away from the center of the ophthalmic lens; or along the same ray or curve, the first and second refractive regions have a gradually increasing size and / or the first and second refractive regions have a gradually decreasing addition power along the same ray or curve, away from the center of the ophthalmic lens. In some embodiments, the number of such rays or curves may be 16-40, preferably 26-35.

[0108] In some exemplary embodiments, the first refractive region 2 and the second refractive region 3 can be asymmetrically positioned on both the nasal and temporal sides of the lens, as shown in FIG. 9 . In this disclosure, the terms "nasal side" and "temporal side" refer to the left and right sides of the lens separated by a vertical line passing through the center of the lens (e.g., a vertical dotted line passing through the center as shown in FIG. 9 ). It is understood that the side closest to the nose when worn is the "nasal side," and the side furthest from the nose is the "temporal side." The nasal and temporal sides of the human eye are not symmetrical. Numerous studies have been conducted to measure off-axis aberrations of the human eye, most of which have been performed using horizontal fields of view. Research has shown that both defocus and astigmatism change with increasing horizontal field of view (Atchison DA. Recent advances in measurement of monochromatic aberrations of human eyes. Clin Exp Optom. 2005 Jan;88(1):5-27). Due to the asymmetry of the human eye, the defocus of the human eye itself is not the same in different directions in the horizontal field of view, and there is a certain difference between the nasal side and the temporal side. Therefore, in some embodiments, the shape, size, density, pitch, area ratio, and / or addition power of the first refractive region 2 and / or the second refractive region 3 may be set asymmetrically on the nasal side and the temporal side in the first region (or each first pattern) and / or the second region (or each second pattern). For example, as shown in FIG. 9, the numbers of the first refractive regions 2 and the second refractive regions 3 on the nasal side (left side) and the temporal side (right side) may be set asymmetrically, so that the proportion of the total area of ​​the first refractive regions 2 set on the temporal side of the first region (first pattern 21) is larger than the proportion of the total area of ​​the first refractive regions 2 set on the nasal side, and the proportion of the total area of ​​the second refractive regions 3 set on the temporal side of the second region (each second pattern 31) is larger than the proportion of the total area of ​​the second refractive regions 3 set on the nasal side.Furthermore, for example, the shape, size, density, pitch, area ratio and / or addition power of the first refractive region 2 and / or the second refractive region 3 on the nasal and temporal sides can be determined based on the wearer's ocular refractive power distribution (e.g., the refractive state of the nasal-temporal peripheral retina) and / or eye length contour (e.g., measured with a Shin Nippon auto-refraction device, a Multispectral Refraction Topograph device (MRT), an IOLMaster, a LensStar, ultrasound, magnetic resonance imaging, or the like). The inventors of the present application have considered that by asymmetrically setting the nasal and temporal refractive regions, it is possible to compensate for the asymmetry of the human eye, allowing the wearer to obtain sufficient myopic defocus in different directions, and thereby better managing and controlling the progression of myopia.

[0109] Preferably, the density or total area ratio of the first refractive regions provided on the temporal side of the first region or first pattern is different from the density or total area ratio of the first refractive regions provided on the nasal side of the first region or first pattern. Preferably, the addition power of the first refractive regions is set asymmetrically between the temporal side and the nasal side of the first region or single first pattern. For example, the addition powers of two first refractive regions that are approximately symmetrical with respect to a vertical line passing through the center of the lens are different. Alternatively, the addition powers of the first refractive regions provided on the temporal side and the nasal side of the first region or each first pattern are each uniform, but the uniform values ​​on both sides are different. Alternatively, the way in which the addition power of the first refractive region provided on the temporal side of the first region or each first pattern changes along the radial or annular direction of the lens (the tendency of change and / or the value, etc.) is different from that on the nasal side. Preferably, the density or total area ratio of the second refractive regions provided on the temporal side of the second region or second pattern is different from the density or total area ratio of the second refractive regions provided on the nasal side of the second region or second pattern. Preferably, the addition power of the second refractive regions is set asymmetrically between the temporal side and the nasal side of the second region or single second pattern. For example, the addition powers of two second refractive regions that are approximately symmetrical with respect to a vertical line passing through the center of the lens are different. Alternatively, the addition powers of the second refractive regions provided on the temporal side and the nasal side of the second region or each second pattern are each uniform, but the uniform values ​​on both sides are different. Alternatively, the way in which the addition power of the second refractive region provided on the temporal side of the second region or each second pattern changes along the radial or annular direction of the lens (the tendency of change and / or the value, etc.) is different from that on the nasal side.

[0110] In some cases, hyperopic defocus is likely to occur on the nasal side, so the addition, density, and / or area ratio of the first refractive region 2 and / or the second refractive region 3 on the temporal side is increased to balance the degree of myopic defocus on both sides. Therefore, preferably, the density or total area ratio of the first refractive region provided on the temporal side of the first region or at least one first pattern is greater than the density or total area ratio of the first refractive region provided on the nasal side of the first region or at least one first pattern. Preferably, the average addition of the first refractive region provided on the temporal side of the first region or at least one first pattern is greater than the average addition of the first refractive region provided on the nasal side of the first region or at least one first pattern. For example, of two first refractive regions that are approximately symmetrical with respect to a vertical line passing through the center of the lens, the addition of the first refractive region on the temporal side is greater than the addition of the first refractive region on the nasal side. Alternatively, the addition powers of the first refractive regions provided on the temporal side and the nasal side of the first region or each first pattern are uniform, and the uniform value on the temporal side is greater than the uniform value on the nasal side. Preferably, the density or the percentage of the total area of ​​the second refractive regions provided on the temporal side of the second region or at least one second pattern is greater than the density or the percentage of the total area of ​​the second refractive regions provided on the nasal side of the second region or at least one second pattern. Preferably, the average addition power of the second refractive regions provided on the temporal side of the second region or at least one second pattern is greater than the average addition power of the second refractive regions provided on the nasal side of the second region or at least one second pattern. For example, of two second refractive regions that are approximately symmetrical with respect to a vertical line passing through the center of the lens, the addition power of the second refractive region on the temporal side is greater than the addition power of the second refractive region on the nasal side. Alternatively, the additional power of the second refractive regions located on the temporal and nasal sides of the second region or each second pattern is a uniform value, and the uniform value on the temporal side is greater than the uniform value on the nasal side.

[0111] Also, according to some exemplary embodiments of the present application, for example, as shown in Figures 1, 2, 5, 8C-8D, and 9, the number of first refractive regions 2 in each first pattern (e.g., first ring 21) and the number of second refractive regions 3 in each second pattern (e.g., second ring 31) may be the same. Preferably, the total number of first refractive regions 2 and second refractive regions 3 arranged in the entire ophthalmic lens may be 170-400, more preferably 190-300.

[0112] According to one aspect of the present disclosure, there is further provided a frame eyeglasses, which may be provided with various ophthalmic lenses according to the above-described embodiments of the present invention, thereby providing the wearer with clear vision while suppressing the progression of refractive error in the wearer's eyes.

[0113] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments of the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should be understood that when used herein, the terms "comprise" and / or "contain" indicate the presence of features, steps, operations, parts, components, and / or combinations thereof.

[0114] It should be noted that the terms "first," "second," etc. in the specification, claims, and drawings are intended to distinguish between similar objects and not to describe a particular order or sequence. It should be understood that the terms used in this specification, claims, and drawings are intended to distinguish between similar objects and not to describe a particular sequence or sequence. It should be understood that the terms used in this specification, claims, and drawings may be interchanged where appropriate, such that the embodiments of the present invention described herein may be performed in an order other than that shown or described herein.

[0115] Although the present application has been described through the above embodiments, it should be understood that the above embodiments are for illustrative and explanatory purposes only and are not intended to limit the present application to the scope of the described embodiments. Furthermore, those skilled in the art will understand that the present application is not limited to the above embodiments, and that many variations and modifications can be made based on the teachings of the present application, and all of these variations and modifications are within the scope of protection of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents. [Explanation of symbols]

[0116] 1. Ophthalmic lenses 2. First refraction area 2a First inner pattern 2b First outer pattern 3 Second Refraction Area 4. Radiation 41 additional patterns 42 curve 43 Composite Line 5 Central area 6. Surrounding Areas 7 Intermediate area 8 First area 9 Second area 21 First Ring 31 Second Ring

Claims

1. 1. An ophthalmic lens comprising a central region, a plurality of first refractive regions, and a plurality of second refractive regions, the plurality of first refractive regions are arranged in a first region surrounding the central region; the plurality of second refractive regions are arranged in a second region farther from the central region than the first region, a portion or all of the central region has a prescription power based on a prescription for the human eye; the plurality of first refractive regions and the plurality of second refractive regions each have a refractive power different from the prescribed refractive power; a ratio of a total area of ​​the plurality of first refractive regions to an area of ​​the first region is greater than a ratio of a total area of ​​the plurality of second refractive regions to an area of ​​the second region; The ratio of the total area of ​​the plurality of first refractive regions in the first region is 60% or more and 78.5% or less, or more than 63% and 78.5% or less, or more than 66% and 78.5% or less, and An ophthalmic lens, wherein the proportion of the total area of ​​the plurality of second refractive regions in the second region is less than 60%, or less than 57%, or less than 54%.

2. 2. The ophthalmic lens according to claim 1, wherein the plurality of first refractive regions are arranged so that, when a wearer wears the ophthalmic lens, an incident light beam that has passed through some or all of the plurality of first refractive regions is projected onto an area between 10 degrees and 20 degrees near the macular fovea of ​​the wearer's retina.

3. 2. The ophthalmic lens of claim 1, wherein at least a portion of the plurality of first refractive regions is arranged within a ring-shaped region centered on the center of the ophthalmic lens, the ring-shaped region having an inner diameter of 9.0 mm and an outer diameter of 15.0 mm, or at least a portion of the plurality of first refractive regions is arranged within a ring-shaped region centered on the center of the ophthalmic lens, the ring-shaped region having an inner diameter of 9.5 mm and an outer diameter of 14.0 mm, or at least a portion of the plurality of first refractive regions is arranged within a ring-shaped region centered on the center of the ophthalmic lens, the ring-shaped region having an inner diameter of 11.0 mm and an outer diameter of 14.0 mm.

4. a maximum dimension of a projection of each of the plurality of first refractive zones and each of the plurality of second refractive zones on the ophthalmic lens is independently selected from the range of 0.5 to 2.2 mm; and / or a projection of each of the plurality of first refractive zones and each of the plurality of second refractive zones on the ophthalmic lens is circular; and / or each of the plurality of first refractive regions and the plurality of second refractive regions has a surface shape selected from a spherical surface, an aspherical surface, or a toric surface; and / or The ophthalmic lens of claim 1 , wherein the plurality of second refractive regions have equal projected areas on the ophthalmic lens.

5. Each of the plurality of first refractive regions has a refractive power equal to the prescribed refractive power plus a positive refractive power, and / or each of the plurality of second refractive regions has a refractive power equal to the prescribed refractive power plus a positive refractive power, or The refractive powers of the first refractive regions and the second refractive regions are all the same, or Along a radial direction of the ophthalmic lens, the refractive power of the plurality of first refractive zones and the plurality of second refractive zones gradually or stepwise increases as the radial distance increases, and / or the size of the plurality of first refractive zones and the plurality of second refractive zones gradually or stepwise decreases as the radial distance increases, or 2. The ophthalmic lens of claim 1, wherein the refractive powers of the first refractive zones and the second refractive zones decrease gradually or stepwise as the radial distance increases along the radial direction of the ophthalmic lens, and / or the dimensions of the first refractive zones and the second refractive zones increase gradually or stepwise as the radial distance increases.

6. the maximum dimension of the central region is selected from 3.0 to 11.0 mm; and / or the central region is a circular region centered at the center of the ophthalmic lens, the diameter of the circular region being selected from the range of 3.0 to 11.0 mm; and / or the first region is a ring-shaped region centered on the center of the ophthalmic lens, the diameter of the inner edge of the ring-shaped region being selected from 3.0 to 11.0 mm, and the diameter of the outer edge being selected from 15.0 to 28.6 mm; and / or The ophthalmic lens of claim 1 , wherein the second region is a ring-shaped region centered on the center of the ophthalmic lens.

7. 2. The ophthalmic lens of claim 1, wherein the first region includes one or more first patterns, and some or all of the first regions are first ring-shaped regions centered on the center of the ophthalmic lens, with an inner edge diameter of 9 mm and an outer edge diameter of 15 mm, and the proportion of the total area of ​​the first refractive regions in any one single first pattern within the first ring-shaped region is greater than 70% and less than 78.5%, or greater than 72% and less than 78.5%.

8. the first region includes one or more first patterns, and some or all of the plurality of first refractive regions are arranged in the one or more first patterns; and / or the second region includes one or more second patterns, and some or all of the second refractive regions are arranged in the one or more second patterns; the pitch between any two adjacent second patterns is equal to the pitch between any two adjacent first patterns, and / or the pitch between any two adjacent second patterns is equal to the pitch between adjacent first and second patterns, or the pitch between any two adjacent second patterns, the pitch between any two adjacent first patterns, and / or the pitch between adjacent first and second patterns are all zero, or The ophthalmic lens of claim 1 , wherein the pitch between any adjacent first patterns is 0.5 mm or less.

9. The ophthalmic lens of claim 8, wherein the number of the first patterns is 1-4, and the number of the second patterns is 1-15.

10. Within at least one first pattern, the edges of adjacent first refractive regions abut each other; and / or In at least one first pattern, the pitch between the first refractive regions is selected from the range of 0 to 0.5 mm; and / or In at least one second pattern, the pitch between the second refractive regions is greater than the maximum pitch between the first refractive regions; and / or Among the plurality of second patterns, the second patterns closer to the center of the ophthalmic lens have smaller pitches between the second refractive regions, and / or The ophthalmic lens according to claim 8 , wherein, among patterns including all of the first patterns and all of the second patterns, the pitch between the first refractive regions or the second refractive regions becomes smaller as the pattern is closer to the center of the ophthalmic lens.

11. The ratio of the total area of ​​the plurality of first refractive regions in at least one of the first patterns is 60% to 78.5%, or 70% to 78.5%, and / or When the first region includes a plurality of first patterns, the ratio of the total area of ​​the first refractive regions in each of the first patterns is 60% or more and 78.5% or less, and / or When the first region includes a plurality of first patterns, the ratio of the total area of ​​the first refractive regions in at least two first patterns is 70% or more and 78.5% or less; and / or The proportion of the total area of ​​the second refractive regions in at least one of the second patterns is 30% or more and less than 60%, or 35% or more and less than 60%, or 40% or more and less than 60%, and / or The ophthalmic lens according to claim 8 , wherein when the second region includes a plurality of second patterns, the proportion of the total area of ​​the second refractive region in each second pattern is equal to or greater than 30% and less than 60%.

12. When the first region includes a plurality of first patterns, the proportion of the total area of ​​the first refractive regions in the first patterns closer to the center of the ophthalmic lens is greater than the proportion of the total area of ​​the first refractive regions in the first patterns farther from the center of the ophthalmic lens; and / or When the second region includes a plurality of second patterns, the proportion of the total area of ​​the second refractive regions in the second patterns closer to the center of the ophthalmic lens is greater than the proportion of the total area of ​​the second refractive regions in the second patterns farther from the center of the ophthalmic lens; and / or The ophthalmic lens of claim 8 , wherein a percentage of the total area of ​​the first refractive regions in each first pattern is greater than a percentage of the total area of ​​the second refractive regions in each second pattern.

13. the plurality of first refractive zones are distributed in a plurality of rays or a plurality of curves originating from the center of the ophthalmic lens; and / or The ophthalmic lens according to claim 1 , wherein the plurality of second refractive regions are distributed along a plurality of radial lines or a plurality of curves originating from a center of the ophthalmic lens.

14. In the same ray or curve, the addition power of the first refractive region is uniform, and / or the addition power of the second refractive region is uniform, and / or the addition power of the first refractive region and the second refractive region are uniform, or In the same ray or curve, the first refractive region has a uniform size, and / or the second refractive region has a uniform size, and / or the first refractive region and the second refractive region have a uniform size, or The first refractive zone has an opposite direction of change in addition power and its dimension along the same ray or curve, and / or the second refractive zone has an opposite direction of change in addition power and its dimension along the same ray or curve, away from the center of the ophthalmic lens; or 14. The ophthalmic lens of claim 13, wherein the first and second refractive zones have gradually or stepwise increasing dimensions along the same radial line or curve, in a direction away from the center of the ophthalmic lens, and / or the first and second refractive zones have gradually or stepwise decreasing addition powers along the same radial line or curve, in a direction away from the center of the ophthalmic lens.

15. the plurality of first refractive regions and the plurality of second refractive regions are arranged to maintain a substantially constant image jump across the first and second regions; 2. The ophthalmic lens of claim 1, wherein the image jump is expressed as the product of the add power of a single first refractive region or second refractive region and the corresponding maximum dimension in the ophthalmic lens, and the substantially constant means that the coefficient of variation of the product of the first refractive region and the second refractive region is less than 30% over the entire range in which the first refractive region and the second refractive region are arranged in the ophthalmic lens.

16. a coefficient of variation of image jumps of the plurality of first refractive regions and the plurality of second refractive regions across the first and second regions is less than 20%; 16. The ophthalmic lens of claim 15, wherein the coefficient of variation of the image jump of the plurality of second refractive regions across the second regions is less than 15%, or less than 12%, or less than 10%.

17. The proportion of the total area of ​​the first refractive regions located on the temporal side of the first region is different from the proportion of the total area of ​​the first refractive regions located on the nasal side of the first region; and / or The addition power of the first refractive region is asymmetrically provided between the temporal side and the nasal side of the first refractive region, and / or The proportion of the total area of ​​the second refractive regions located on the temporal side of the second region is different from the proportion of the total area of ​​the second refractive regions located on the nasal side of the second region; and / or 2. The ophthalmic lens according to claim 1, wherein the add power of the second refractive region is asymmetrically provided on the temporal side and the nasal side of the second region.

18. A frame eyeglasses provided with the ophthalmic lens according to any one of claims 1 to 17.

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