Ophthalmic lens and frame glasses having the same

Abstract

The present application provides an ophthalmic lens and frame glasses having the same. The ophthalmic lens includes a plurality of first refractive areas and a plurality of second refractive areas. The plurality of first refractive areas are closer to the center of the ophthalmic lens than the plurality of second refractive areas. The incident light beam passing through the plurality of first refractive areas is projected onto an area between 10 and 20 degrees next to the fovea of the wearer's retina. The spacing between the plurality of second refractive areas is greater than the spacing between the plurality of first refractive areas. The area other than the plurality of first refractive areas and the plurality of second refractive areas on the ophthalmic lens has a corrective refractive power based on correcting the refractive error of the eye, and the plurality of first refractive areas and the plurality of second refractive areas all have a refractive power different from the corrective refractive power. The present application provides a myopic defocus formed by intensively adding light by setting a high-density myopic defocus area near the central optical zone, which can give the retina more stimulation, thereby inhibiting the elongation of the eye axis.

Description

Technical Field

[0001] The present application relates to the technical field of spectacle lenses, and in particular, to an ophthalmic lens having multiple micro-defocus areas, and frame glasses having the same. Background Art

[0002] Refractive errors include myopia, hyperopia, and astigmatism. Myopia is the most common refractive error, particularly among adolescents. When the eye is in a state of accommodative rest, parallel light rays from the outside world, after passing through the eye's refractive system, focus in front of the retina rather than on the fovea, causing the patient to have difficulty seeing distant objects. This is called myopia. In other words, myopia occurs when the axial length of the eye is greater than the focal length of the eye's optical system.

[0003] Ophthalmic devices such as eyeglasses or contact lenses are commonly used to correct or improve a patient's vision, for example, using negative lenses to correct myopia and positive lenses to correct hyperopia. Conventional ophthalmic lenses used for myopia correction are single-vision (monofocal) spherical lenses, meaning the refractive power is the same from center to edge. The Petzval surface of optimal focus produced by single-vision spherical lenses is spherical, while the eyeball is generally ellipsoidal. This causes the peripheral Petzval surface to be positioned behind the retina, resulting in hyperopic defocus. Hyperopic defocus promotes axial length growth of the eye, thereby contributing to the progression of myopia.

[0004] Currently, there are many ophthalmic lenses for myopia prevention and control. One of them involves arranging multiple microlenses on a single-vision spherical lens, and suppressing the progression of myopia by using these microlenses to form an image of an object in front of the retina, see CN104678572 A.

[0005] However, there is still a demand for myopia prevention and control lenses that can effectively inhibit the growth of the axial length of the eye without significantly affecting the visual quality, while improving patient compliance and reducing differences between individuals. Summary of the Invention

[0006] In order to at least partially solve the problems existing in the prior art, according to one aspect of the present application, an ophthalmic lens is provided, which includes multiple first refractive areas and multiple second refractive areas. The multiple first refractive areas are closer to the center of the ophthalmic lens than the multiple second refractive areas, and the multiple first refractive areas are configured so that when a wearer wears the ophthalmic lens, an incident light beam passing through the multiple first refractive areas is projected onto an area between 10 degrees and 20 degrees next to the fovea of the wearer's retina, the spacing between the multiple second refractive areas is greater than the spacing between the multiple first refractive areas, and the area on the ophthalmic lens other than the multiple first refractive areas and the multiple second refractive areas has a corrective refractive power based on correcting the refractive error of the eye, and the multiple first refractive areas and the multiple second refractive areas both have a refractive power different from the corrective refractive power.

[0007] Exemplarily, multiple first refractive areas are arranged in an annular area with an inner diameter of 9 mm to an outer diameter of 15 mm centered on the center of the ophthalmic lens, preferably in an annular area with an inner diameter of 11 mm to an outer diameter of 14 mm centered on the center of the ophthalmic lens.

[0008] Exemplarily, the plurality of first refraction regions are arranged without being spaced apart.

[0009] Exemplarily, the plurality of second refraction areas are arranged at intervals.

[0010] Exemplarily, any two adjacent first refraction areas among the plurality of first refraction areas are connected to each other.

[0011] Exemplarily, the plurality of first refractive areas are arranged on one or more first patterns, the plurality of second refractive areas are arranged on one or more second patterns, and the second patterns and the first patterns are disposed concentrically with the ophthalmic lens.

[0012] Exemplarily, the spacing between the first pattern and the second pattern is equal to the spacing between any two adjacent second patterns. Preferably, the spacing between the first pattern and the second pattern and the spacing between any two adjacent second patterns are both zero.

[0013] Exemplarily, the number of the first patterns is 1-4, and the number of the second patterns is 1-15.

[0014] Exemplarily, there are a plurality of first patterns, and the spacing between adjacent first patterns is less than or equal to 0.5 mm.

[0015] Exemplarily, both the second pattern and the first pattern are ring-shaped.

[0016] For example, the farther a pattern is from the center of the ophthalmic lens, the larger the distance between two adjacent refractive areas in the pattern.

[0017] Exemplarily, the ophthalmic lens includes a central area, which is an area surrounded by a plurality of first refraction areas, and the plurality of first refraction areas and the plurality of second refraction areas are located in an annular area surrounding the central area.

[0018] Illustratively, the diameter of the central region is between 3 and 11 mm.

[0019] Exemplarily, the plurality of first refraction areas and the plurality of second refraction areas are evenly distributed in the annular area; or the plurality of first refraction areas and the plurality of second refraction areas are unevenly distributed in the annular area, so that the annular area has a blank area where the first refraction area and / or the second refraction area are not set.

[0020] Exemplarily, the plurality of second refractive areas are arranged on a plurality of second patterns concentrically disposed with the ophthalmic lens, and the second refractive areas on the second patterns closer to the center of the ophthalmic lens have smaller intervals.

[0021] Exemplarily, the plurality of first refractive areas and the plurality of second refractive areas are distributed on a plurality of rays starting from the center of the ophthalmic lens, and a first refractive area and a second refractive area are distributed on each ray.

[0022] Exemplarily, the plurality of rays are evenly distributed on the ophthalmic lens.

[0023] Exemplarily, the number of the plurality of rays is 26-35.

[0024] Exemplarily, on each ray, the number of the first refraction areas is smaller than the number of the second refraction areas.

[0025] Exemplarily, when the number of the plurality of rays is 2n, the plurality of rays form n straight lines.

[0026] Exemplarily, a single first refraction area among the plurality of first refraction areas and a single second refraction area among the plurality of second refraction areas have a surface shape selected from a spherical surface, an aspherical surface, or a toric surface.

[0027] Exemplarily, the plurality of first refractive zones add positive refractive power to the corrective refractive power;

[0028] Illustratively, the second refractive zone adds positive refractive power to the corrective refractive power.

[0029] Exemplarily, the refractive power of the plurality of first refractive areas is equal to the refractive power of the plurality of second refractive areas; or along the direction away from the center of the ophthalmic lens, the plurality of first refractive areas and the plurality of second refractive areas have a refractive power that gradually increases or increases in a step-by-step manner as a whole; or along the direction away from the center of the ophthalmic lens, the plurality of first refractive areas and the plurality of second refractive areas have a refractive power that gradually decreases or decreases in a step-by-step manner as a whole.

[0030] Exemplarily, projections of the plurality of second refractive zones on the ophthalmic lens have equal areas.

[0031] According to another aspect of the present invention, an ophthalmic lens is also provided, on which a plurality of microlenses are arranged, wherein the spacing between the microlenses near the center of the ophthalmic lens among the plurality of microlenses is smaller than the spacing between the microlenses away from the center of the ophthalmic lens, and the microlenses near the center of the ophthalmic lens are configured so that when a wearer wears the ophthalmic lens, the incident light beam passing through the microlenses near the center of the ophthalmic lens is projected onto an area between 10 degrees and 20 degrees next to the fovea of the wearer's retina, and the area other than the plurality of microlenses on the ophthalmic lens has a corrective refractive power based on correcting the refractive error of the eye, and the plurality of microlenses each have a refractive power different from the corrective refractive power.

[0032] Exemplarily, the microlens near the center of the ophthalmic lens is arranged in an annular area with an inner ring diameter of 9 mm to an outer ring diameter of 15 mm centered on the center of the ophthalmic lens, preferably in an annular area with an inner ring diameter of 11 mm to an outer ring diameter of 14 mm centered on the center of the ophthalmic lens.

[0033] Illustratively, microlenses near the center of the ophthalmic lens are arranged in one or more first patterns, and microlenses away from the center of the ophthalmic lens are arranged in one or more second patterns, and the second patterns and the first patterns are disposed concentrically with the ophthalmic lens.

[0034] Exemplarily, the pitch between the microlenses arranged in a single first pattern is selected from 0.0 to 0.5 mm.

[0035] Exemplarily, the spacing between the first pattern and the second pattern is equal to the spacing between any two adjacent second patterns. Preferably, the spacing between the first pattern and the second pattern and the spacing between any two adjacent second patterns are both zero.

[0036] Exemplarily, the number of the first patterns is 1-4, and the number of the second patterns is 1-15.

[0037] Exemplarily, both the second pattern and the first pattern are ring-shaped.

[0038] For example, the farther a pattern is from the center of the ophthalmic lens, the larger the distance between two adjacent refractive areas in the pattern.

[0039] Exemplarily, the ophthalmic lens includes a central region, which is a region surrounded by a plurality of microlenses, and the plurality of microlenses are located in an annular region surrounding the central region.

[0040] Illustratively, the diameter of the central region is between 3 and 11 mm.

[0041] Exemplarily, the plurality of microlenses are distributed on a plurality of rays starting from the center of the ophthalmic lens.

[0042] Exemplarily, when the number of the plurality of rays is 2n, the plurality of rays form n straight lines.

[0043] Exemplarily, the number of the plurality of rays is 26-35.

[0044] Exemplarily, the plurality of microlenses add positive refractive power to the corrective refractive power, wherein the refractive power added by each of the plurality of microlenses is the same; or the plurality of microlenses have a gradually increasing or step-wise increasing refractive power in a direction away from the center of the ophthalmic lens; or the plurality of microlenses have a gradually decreasing or step-wise decreasing refractive power in a direction away from the center of the ophthalmic lens.

[0045] According to another aspect of the present invention, a pair of frame glasses is provided, wherein any one of the above ophthalmic lenses is provided on the frame glasses.

[0046] The content of this application introduces a series of simplified concepts, which will be further described in detail in the detailed description. This content of this application does not attempt to define the key features and essential technical features of the claimed technical solution, nor does it attempt to determine the scope of protection of the claimed technical solution.

[0047] The advantages and features of the present application are described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The following drawings of this application are hereby incorporated as part of this application for understanding this application. The drawings show the embodiments of this application and their descriptions, and are used to explain the principles of this application. In the drawings,

[0049] Figure 1 is a front view of an ophthalmic lens according to an exemplary embodiment of the present application;

[0050] Figure 2 is a front view of an ophthalmic lens according to another exemplary embodiment of the present application;

[0051] Figure 3 for Figure 2 A partial enlarged view of

[0052] Figure 4 is a front view of an ophthalmic lens according to yet another exemplary embodiment of the present application;

[0053] Figure 5 is a front view of an ophthalmic lens according to yet another exemplary embodiment of the present application;

[0054] Figure 6 for Figure 5 A partial enlarged view of

[0055] Figure 7 a data chart comparing an ophthalmic lens according to an exemplary embodiment of the present application with a control; and

[0056] Figures 8A-8E They are simplified schematic diagrams of ophthalmic lenses according to different embodiments of the present application, respectively showing different distributions of refractive areas, wherein the outer contours of all microlenses are not drawn in order to clearly illustrate the arrangement rules of the microlenses.

[0057] The above drawings include the following reference numerals:

[0058] 1. Ophthalmic lens; 2. First refractive zone; 2a. First inner pattern; 2b. First outer pattern; 3. Second refractive zone; 4. Ray; 41. Additional pattern; 42. Curve; 43. Composite line; 5. Central zone; 6. Peripheral zone; 7. Intermediate zone; 21. First ring; 31. Second ring. DETAILED DESCRIPTION

[0059] In the following description, a large amount of details are provided to enable a thorough understanding of the present application. However, it will be appreciated by those skilled in the art that the following description is merely illustrative of preferred embodiments of the present application, and the present application may be implemented without one or more of these details. In addition, in order to avoid confusion with the present application, some technical features well known in the art are not described in detail.

[0060] To thoroughly understand the embodiments of the present application, a detailed structure will be provided in the following description. Obviously, the implementation of the embodiments of the present application is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the present application are described in detail below, but in addition to these detailed descriptions, the present application may also have other embodiments.

[0061] In order to prevent and control myopia as much as possible while also meeting the visual clarity requirements of the lens, one aspect of the present application provides an ophthalmic lens.

[0062] The following will be combined Figure 1The ophthalmic lens of the present application will be described in detail.

[0063] like Figure 1As shown, an ophthalmic lens 1 has a corrective refractive power based on correcting ametropia. The ophthalmic lens 1 is provided with a plurality of first refractive areas 2 near the center of the ophthalmic lens 1. The plurality of first refractive areas 2 can be arranged in one or more first patterns, for example, two, three, but not more than four first patterns. The one or more first patterns can be arranged concentrically with the ophthalmic lens 1. The first pattern can be annular, quasi-annular, or any other shape that is centrally symmetrical about the center of the lens. The plurality of first patterns can be identical or different. Quasi-annular means that most of the first refractive areas 2 are arranged on one or more circumferences, while the remaining first refractive areas 2 are located outside the circumferences. For example, the plurality of first refractive areas 2 can be arranged in a regular pattern (e.g., evenly spaced) on the inner side of the circumference and immediately adjacent to the circumference, and / or arranged in a regular pattern (e.g., evenly spaced) on the outer side of the circumference and immediately adjacent to the circumference. For example, the plurality of first refractive areas 2 can be arranged in a shape resembling the outline of a sunflower. The ophthalmic lens 1 is also provided with multiple second refractive zones 3, spaced apart from the center of the lens 1. These zones are formed as multiple, spaced-apart island-shaped areas arranged on one or more second patterns. The one or more second patterns can be concentric with the ophthalmic lens 1. There is no specific limit on the maximum size of the second pattern; those skilled in the art can select an appropriate range as needed. Similar to the first pattern, the second pattern can be annular, quasi-annular, or any other shape that is centrally symmetrical about the center of the lens. The multiple second patterns can be the same or different. The first and second refractive zones 2, 3 each have a refractive power different from the corrective power. Both the first and second refractive zones 2, 3 are capable of focusing light at locations outside the retina of the eye, thereby inhibiting the progression of refractive errors. The central zone 5 of the ophthalmic lens 1, the peripheral zone 6 outside the first and second refractive zones 2, 3, and the intermediate zone 7 between the first and second refractive zones 2, 3 can all have corrective refractive power. The central zone 5 of the ophthalmic lens 1 is designed to be directly opposite the pupil when the user is looking straight ahead after wearing the lens. In this way, after correction by the central area 5, the image is precisely imaged on the fovea, ensuring clear vision. The corrected refractive power is the refractive power prescribed by an optometrist, which can be understood as the conventional degree. The first refractive area 2 is an area having a refractive power different from the corrected refractive power. For example, multiple first refractive areas 2 can be connected to each other along a first pattern on the ophthalmic lens 1. The projection of each first refractive area 2 on the lens can be a perfect circle, an oblate circle, a polygon, etc. For a polygon, the number of sides can be greater than or equal to 6. When the first refractive area 2 is circular, any two adjacent first refractive areas 2 can be tangent to each other along the first pattern. The multiple first refractive areas 2 are used to form dense light addition (the light addition is to add positive refractive power to the corrected refractive power) on the periphery of the central area 5.The present application achieves a better myopia control effect by setting a high-density myopic defocus area near the central optical zone. The inventors found that myopic defocus formed by dense light addition in an annular area with an inner ring diameter of 9 mm and an outer ring diameter of 15 mm centered on the center of the ophthalmic lens can give more stimulation to the retina, thereby inhibiting the elongation of the eye axis. The incident light beam passing through the annular area is roughly projected on an area between 10 degrees and 20 degrees next to the fovea of the retina. Consistent with this, studies have shown that competitive myopic defocus signals applied near the fovea of the retina have a stronger and more consistent effect on slowing the axial growth of the eye axis (EL Smith III et al., Eccentricity-dependent effects of simultaneous competing defocus onemmetropization in infant rhesus monkeys, Vision Research, 17(3):32-40, 2020).

[0064] Preferably, intensive light addition can be performed in an annular area formed by an inner ring diameter of 11 mm to an outer ring diameter of 14 mm with the center of the ophthalmic lens as the center, and the incident light beam passing through the annular area is roughly projected onto an area around 15 degrees next to the fovea of the retina. Considering that the lens may move up and down during wearing, in order to ensure that the retinal defocus sensitive area is covered, intensive light addition needs to be performed in an annular area with a certain width. Figure 7 The optical simulation software Optic Studio Zemax was used to calculate the field curvature integral (negative field curvature absolute value) when lenses with different microlens arrangements were placed on the surface of the model eye Liou & Brenna. Figure 7As shown, the lens of the present invention provides more defocus stimulation to the retina by placing densely light-adding microlenses in areas corresponding to the retinal defocus-sensitive areas. See the preferred embodiment (where the densely light-adding microlenses are generally located in an annular area with an inner diameter of 9.5 mm and an outer diameter of 14 mm). In a small-scale experiment, the ophthalmic lens of the present invention was found to effectively promote choroidal thickening (average choroidal thickening of 6±6% over two weeks). Short-term choroidal thickening is currently believed to be correlated with long-term axial length control effects. Of course, within each first pattern, the first refractive areas 2 may have a smaller spacing (e.g., less than 0.5 mm, such as 0.4, 0.3, 0.2, or 0.1 mm). In any case, the spacing between the first refractive areas 2 can be smaller than the spacing between the second refractive areas 3. It is also conceivable that the density of the first refractive areas 2 can be greater than the density of the second refractive areas 3. The density of the refractive areas refers to the number of refractive areas per unit area. Typically, the size of each refractive area is relatively small, and the sizes of different refractive areas do not differ greatly. Therefore, density can be used to describe the density of the first refractive area 2 and the second refractive area 3. Of course, spacing can also be used to measure the density of the first refractive area 2 and the second refractive area 3.

[0065] The second refractive area 3 also has a refractive power different from the corrective refractive power. Multiple second refractive areas 3 can be spaced apart from each other to form island-shaped areas. The inventors have found that maintaining appropriate spacing between the second refractive areas 3 can not only improve the compliance of myopic patients, but also minimize the differences in myopia prevention and control effects between different patients. Without wishing to be bound by any theory, the inventors believe that if the myopic defocus range is too large and insufficient light is focused on the retina, it may make it difficult for the eye to determine whether to adjust the retina forward or backward to find the focus point, resulting in large differences in effects between different patients. Therefore, it is important to maintain sufficient spacing between the multiple second refractive areas 3.

[0066] This design applies the reverse degree principle, making the refractive power in a specific micro-area outside the central area 5 (for example, -0.75D) smaller than the refractive power of the central area 5 (for example, -3.5D), thereby forming myopic defocus on the peripheral retina that can be perceived by the retina but not by the brain. In this way, the axial growth of the eye is controlled without affecting or significantly affecting the visual effect, thereby preventing or delaying the progression of myopia.

[0067] The first refractive areas 2 can be arranged in one or more first patterns, wherein Figure 1 shows the situation where the first refractive areas 2 are arranged on a first pattern; Figure 2 FIG shows a situation where the first refractive areas 2 are arranged on a plurality of first patterns. Figure 3 Shown Figure 2In a local area of the optical system, the first refractive areas 2 can be arranged in a first pattern 2a near the central area 5 (hereinafter referred to as the inner first pattern 2a for ease of description) and in a first pattern 2b farther from the central area 5 and adjacent to the first pattern 2a (hereinafter referred to as the outer first pattern 2a for ease of description). The first refractive areas in the inner first pattern 2a can be connected or closely adjacent. Closely adjacent means that the spacing between these first refractive areas is smaller, for example, smaller than the spacing between the second refractive areas 3. The first refractive areas in the outer first pattern 2b can be connected or closely adjacent. The inner first pattern 2a and the outer first pattern 2b can be connected or closely adjacent. To enhance the dense light-adding effect of the first refractive areas 2, the first refractive areas in the inner first pattern 2a and the outer first pattern 2b can be connected both within the pattern and between patterns. In this case, the diameter of the first refractive area in the inner first pattern 2a can be set slightly smaller than the diameter of the first refractive area in the outer first pattern 2b. In this way, the number of first refractive areas in the inner first pattern 2a and the first refractive areas in the outer first pattern 2b can be equal. Of course, the first refractive areas in the inner first pattern 2a and the first refractive areas in the outer first pattern 2b can also be set to have the same diameter. In this case, the number of first refractive areas in the inner first pattern 2a can be less than the number of first refractive areas in the outer first pattern 2b. Although Figures 2 to 3 An embodiment in which the first refraction areas 2 are arranged into two first patterns is described, but it can be understood that the first refraction areas 2 can also be arranged into more first patterns.

[0068] Although in the illustrated embodiment, the first refraction areas 2 are illustrated as being uniformly arranged along the extension direction of the first pattern, in an embodiment not shown, the first refraction areas 2 may also be non-uniformly arranged along the extension direction of the first pattern. The extension direction of the first pattern refers to the extension direction of the line substantially formed by the first pattern. Figures 1 to 2 In the embodiment, the first patterns are all formed into circular rings, so the extension direction of the first pattern can be understood as the extension direction of the lines forming the circular rings, that is, the circumferential direction. In other embodiments, for a first pattern, in addition to the uniformly arranged first refractive areas, it can also include some non-uniformly arranged first refractive areas. The non-uniformly arranged first refractive areas are discretely distributed along the extension direction of the first pattern, and there can be a large spacing between them, but they are connected to or closely adjacent to the first refractive areas 2 that are connected or closely arranged along the extension direction of the first pattern. Optionally, adjacent first patterns may not be connected (i.e., not like Figure 2The spacing between adjacent patterns (referred to as pattern spacing) refers to the distance along the radial direction of the lens between the refractive areas of one pattern and the refractive areas of another adjacent pattern. When the refractive areas of different patterns are radially distributed, the pattern spacing can be determined by the two adjacent refractive areas in the radial direction. When the refractive areas of different patterns are not radially distributed, the pattern spacing can be half the difference between the dimension of the innermost contour of the outer pattern in the predetermined radial direction and the dimension of the outermost contour of the inner pattern in the predetermined radial direction.

[0069] The second refractive areas 3 can be arranged in one or more second patterns, such as Figures 1 to 3 In the illustrated embodiments, the second refraction areas 3 are arranged in multiple second patterns. In this case, the spacing between the second refraction areas 3 in the outer second patterns can be larger. Of course, the spacing between the second refraction areas 3 in each second pattern can also be uniform. For example, the spacing between the second refraction areas 3 in different second patterns can be equal. This will result in the outer second patterns having more or larger second refraction areas 3. Furthermore, the spacing between adjacent second patterns can be equal. Of course, the spacing between patterns can also be larger in the outer second patterns.

[0070] For example, as a whole, for all patterns including the first pattern and the second pattern, the farther away from the center of the ophthalmic lens the pattern is, the larger the distance between two adjacent refractive areas in the pattern is, see Figure 1 、 4 and 5. That is, for any two adjacent patterns, the spacing between the refractive areas in the pattern closer to the center of the ophthalmic lens is smaller than the spacing between the refractive areas in the pattern farther from the center of the ophthalmic lens. Of course, the above rule may only exist for the second pattern. Specifically, when there are multiple first patterns, in order to ensure that intensive light addition is performed in the portion corresponding to the retinal defocus sensitive area, the first refractive areas in each first pattern may be connected or adjacent to each other, see Figure 2 In this case, the spacing between the second refractive areas within the second pattern further away from the center of the ophthalmic lens can be larger. In one exemplary embodiment, the spacing between two adjacent refractive areas within a single pattern gradually increases from zero to the outermost pattern, but does not exceed 2.00 mm, preferably does not exceed 1.90 mm, and more preferably does not exceed 1.80 mm, for example, gradually increasing to 1.20 mm.

[0071] Although in the illustrated embodiment, the second refraction areas 3 are illustrated as being uniformly arranged along the extension direction of the second pattern, in an embodiment not shown, the second refraction areas 3 may also be non-uniformly arranged along the extension direction of the second pattern. The extension direction of the second pattern refers to the extension direction of the line substantially formed by the second pattern. Figures 1 to 2 In the embodiment, the second patterns are all formed into circular rings, so the extension direction of the second pattern can be understood as the extension direction of the lines forming the circular rings, that is, the circumferential direction. In other embodiments, for a second pattern, in addition to the uniformly arranged second refractive areas, it can also include some non-uniformly arranged second refractive areas. The non-uniformly arranged second refractive areas are discretely distributed along the extension direction of the second pattern, and there can be large spacing between them, but they are connected to or closely adjacent to the second refractive areas 3 that are connected or closely arranged along the extension direction of the second pattern. Optionally, adjacent second patterns may not be connected (i.e., not like Figure 2 ) or not immediately adjacent, but with a slightly larger spacing.

[0072] In a specific embodiment, each first pattern may be ring-shaped. Figure 1 The first refractive areas 2 can be arranged on the first ring 21. Of course, in other embodiments not shown, each first pattern can also be polygonal or other centrally symmetrical shapes. The number of first rings 21 can be one or more. When there are multiple first rings 21, adjacent first rings 21 can be connected, closely adjacent, or have a slightly larger spacing between them. Multiple second refractive areas 3 can be arranged on one or more second rings 31. The second rings 31 are arranged concentrically with the first ring 21. Spaces can also be provided between the multiple second rings 31. When the first rings 21 and the second rings 31 are collectively referred to as rings, the spacing between adjacent rings can be equal. Of course, the spacing between adjacent rings can also gradually increase as they move away from the central area 5, that is, the pattern spacing can gradually increase. Alternatively, the first rings 21 can have an equal first spacing, while the second rings 31 can have an equal or unequal second spacing. The first spacing can be smaller than the second spacing.

[0073] In another specific embodiment, the first patterns (if any), the second patterns, and the first and second patterns may be adjacent to or in close proximity. Figures 5 and 6As shown, the first rings 21 and second rings 31 can be adjacent or directly adjacent to each other, and adjacent second rings 31 can also be adjacent or directly adjacent to each other. In this case, it's no longer clear which is the first ring and which is the second ring. However, from an overall perspective, it's still clear that the spacing between the outer refractive zones is significantly greater than the spacing between the inner refractive zones. Within the scope of this application, for clarity, a pattern in which the spacing between at least two adjacent refractive zones within the same pattern is less than 0.5 mm is referred to as a "first pattern." In one embodiment, since there is little or no spacing (less than 0.5 mm) between the refractive zones in the innermost pattern and the adjacent pattern, it can be assumed that there are two first rings 21 and six second rings 31. The spacing between the second rings 31 is zero, and the spacing between the first and second rings 21 and 31 is also zero. The spacing between the second refractive zones 3 within each second ring 31 increases toward the outer edges.

[0074] Of course, the first refraction area 2 and the second refraction area 3 may not be distributed on the ring. For example, they may be distributed only on one side of the central area 5, such as the upper side, lower side, left side or right side in the figure, or they may be part of the area surrounding the central area 5. They may be arranged symmetrically or asymmetrically about the central area 5. The specific distribution method can be adjusted accordingly according to the wearer's vision. Figure 4 As shown, the first or second refractive zone may not be provided in area B in the figure. Area B is used to allow the wearer to switch between distance vision (e.g., viewing a blackboard) and near vision (e.g., reading a book on a desk) without having to move the head significantly. Therefore, this area may optionally have a refractive power different from the corrective refractive power for near vision tasks.

[0075] According to some exemplary embodiments of the present application, the first refractive zone 2 has a refractive power obtained by adding a positive refractive power to the corrective refractive power. In other words, the overall refractive power of the lens corresponding to the first refractive zone 2 is less than the corrective refractive power. The overall refractive power of the lens corresponding to the first refractive zone 2 is less than the refractive power (i.e., the corrective refractive power) of the other regions other than the first refractive zone 2 and the second refractive zone 3. In this case, the first refractive zone 2 is equivalent to a convex lens added to the original lens.

[0076] It should be noted that each first refractive zone 2 may have a uniform refractive power or different refractive powers. In a preferred embodiment, each first refractive zone 2 has a uniform refractive power. In this application, the positive refractive power added by the first or second refractive zone relative to the central zone 5 is simply referred to as the addition. Within the scope of this application, the addition of the first refractive zone 2 relative to the central zone 5 is in the range of +1.0D to +10.0D, for example, +1.5D, +2.5D, +3.0D, +3.5D, +4.0D, +4.5D, +5.0D, +5.5D, +6.0D, +7.0D, +8.0D, or +9.0D. For example, the addition of the first refractive zone 2 may be constant, increase gradually, or increase in a stepwise manner as it moves away from the central zone 5. The so-called step-wise increase means that the first refractive areas 2 of several adjacent patterns have a first addition, while the first refractive areas 2 of several patterns outside the adjacent patterns may have a second addition, which may be greater than the first addition.

[0077] According to some exemplary embodiments of the present application, each first refractive area 2 may be a microlens attached to the original lens. For example, it may be a convex lens. Alternatively, the first refractive area 2 may have a consistent profile with the original lens, meaning it does not protrude beyond the original lens. In this case, the first refractive area 2 may have a different refractive index than the original lens. For example, the first refractive area 2 and the original lens may be made of different materials, or the refractive index of different regions of the lens material may be adjusted by adjusting the ion concentration during polymerization, or specific regions may be irradiated with ultraviolet light to cause repolymerization and thereby alter the refractive index.

[0078] The maximum size of the projection of each first refractive area 2 on the lens can be between 0.8 and 2.2 mm, for example, 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, or 2.1 mm, or any value therebetween. When the projection of the first refractive area 2 on the lens is circular, the diameter of the circle can be between 0.8 and 2.2 mm.

[0079] For example, the central region 5 can be circular, polygonal, or other centrally symmetrical shapes. The maximum size of the central region 5 can be 3-11 mm, for example, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, or 11 mm, or any value therebetween. When the central region 5 is circular, the diameter of the central region 5 can be between 3 and 11 mm.

[0080] Let's briefly explain this using an example: assuming a corrective refractive power of -3.5D, the diameter of the central region 5 of the lens is 10mm, and the first refractive zone 2 is located approximately 5mm from the center. For example, the first refractive zones 2 can be located immediately adjacent to the 10mm diameter central region 5. The number of first refractive zones 2 can then be calculated as π × d1 / d2, where d1 is the diameter of the central region 5 and d2 is the maximum dimension of the first refractive zones 2. When d2 is 1.2mm, the number of first refractive zones 2 can be calculated to be 26. Of course, the number of first refractive zones 2 can range from 26 to 35, correspondingly adjusting the maximum dimension of the first refractive zones 2 and the diameter of the central region 5. By densely arranging the first refractive zones 2 around the central region 5, axial elongation can be effectively delayed, effectively suppressing myopia.

[0081] According to some exemplary embodiments of the present application, the second refractive zone 3 has a refractive power obtained by adding a positive refractive power to the corrective refractive power. In other words, the overall refractive power of the lens corresponding to the second refractive zone 3 is less than the corrective refractive power. The overall refractive power of the lens corresponding to the second refractive zone 3 is less than the corrective refractive power. The second refractive zone 3 can be equivalent to a convex lens added to the original lens.

[0082] It should be noted that each second refractive zone 3 may have a uniform refractive power or different refractive powers. In a preferred embodiment, each second refractive zone 3 has a uniform refractive power. Within the scope of the present application, the addition power of the second refractive zones 3 relative to the central zone 5 is in the range of +1.0D to +10.0D, for example, +1.5D, +2.5D, +3.0D, +3.5D, +4.0D, +4.5D, +5.0D, +5.5D, +6.0D, +7.0D, +8.0D, or +9.0D. For example, the addition power of the second refractive zones 3 may be constant, gradually increase, increase in steps, or gradually decrease, or decrease in steps, as it moves away from the central zone 5. For example, the second refractive zones 3 and the first refractive zone 2 may have equal addition power. For example, along the direction away from the central area 5 , the first refraction area 2 and the second refraction area 3 may have an addition that increases gradually or in a stepwise manner or decreases gradually or in a stepwise manner as a whole.

[0083] According to some exemplary embodiments of the present application, each second refractive zone 3 may be a microlens attached to the original lens. For example, it may be a convex lens. Alternatively, the second refractive zone 3 may have a consistent profile with the original lens, meaning it does not protrude beyond the original lens. In this case, the second refractive zone 3 may have a different refractive index than the original lens. For example, the second refractive zone 3 and the original lens may be made of different materials, or the refractive index of different regions of the lens material may be adjusted by adjusting the ion concentration during polymerization, or specific regions may be irradiated with ultraviolet light to cause repolymerization, thereby changing the refractive index.

[0084] The maximum size of the projection of each second refractive zone 3 on the lens can be between 0.8 and 2.2 mm, for example, 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, or 2.1 mm, or any value therebetween. When the projection of the second refractive zone 3 on the lens is circular, the diameter of the circle can be between 0.8 and 2.2 mm.

[0085] As previously described, the first refraction zones 2 can be arranged on a single first ring 21, and the second refraction zones 3 can be arranged on multiple second rings 31. The second rings 31 are arranged concentrically with the first ring 21. The spacing between them can be equal. For example, assuming there is one first ring 21 and five second rings 31, the largest second ring 31 may have a diameter of 30 mm (a radius of 15 mm), the central region 5 may have a diameter of 10 mm (a radius of 5 mm), and the diameters of the first and second refraction zones 2 and 3 are both 1.2 mm. The spacing between adjacent rings can be (15 - 5 - 0.6) / 5 - 1.2 ≈ 0.7 mm, meaning the spacing between adjacent rings (i.e., the spacing between two refraction zones on adjacent rings in the radial direction) is approximately 0.7 mm. In some embodiments, the spacing between adjacent rings or patterns may not be equal. For example, the spacing between adjacent patterns may be equal to 0.2 to 1.5 times, such as 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, the diameter of the first refraction zone 2 or the second refraction zone 3. In still other embodiments, the spacing between at least two adjacent rings or patterns is equal to 0.

[0086] When both the multiple first refractive areas and the multiple second refractive areas are microlenses, the multiple first refractive areas can be considered as microlenses located near the center of the ophthalmic lens, while the multiple second refractive areas can be considered as microlenses located away from the center of the ophthalmic lens. The terms "close" and "away" are not absolute but relative. The microlenses located near the center of the ophthalmic lens are a portion of all microlenses, while the microlenses located away from the center of the ophthalmic lens are another portion of all microlenses. The former portion is closer to the center of the ophthalmic lens than the latter portion, while the latter portion is farther from the center than the former portion.

[0087] According to some exemplary embodiments of the present application, the number of first refraction areas 2 on each first ring 21 may be the same as the number of second refraction areas 3 on each second ring 31. Preferably, the total number of first refraction areas 2 and second refraction areas 3 is 170-400, more preferably, 190-300.

[0088] Exemplarily, multiple first refractive areas 2 and multiple second refractive areas 3 are distributed along multiple rays 4 originating from the center of the ophthalmic lens. This ray-like distribution ensures that when a user wears the lens, they have clear, ray-like areas for vision in all directions, up, down, left, and right. This ensures clear vision in all directions, especially when the pattern spacing is small. Each ray 4 is distributed with a first refractive area 2 and a second refractive area 3. On each ray 4, the number of first refractive areas is less than the number of second refractive areas. Exemplarily, when the number of rays 4 is 2n, these rays 4 form n straight lines. Of course, in other embodiments not shown, the multiple first refractive areas 2 and the multiple second refractive areas 3 may not be distributed along rays. For example, the refractive areas on some rings may be staggered relative to the refractive areas on adjacent rings. When multiple first refractive zones 2 and multiple second refractive zones 3 are distributed along ray 4, the number of refractive zones in each ring is equal. In this case, a radially continuous blank area is formed outside the central optical zone, i.e., a radially continuous distance refractive correction zone, which helps provide good visual quality. Alternatively, the number of refractive zones can be reduced along the rings closer to the central zone 5, and correspondingly, the number of refractive zones can be increased along the rings farther from the central zone 5. Alternatively, along each ray, the first and second refractive zones 2 and 3 can have an overall gradually or stepwise increasing size and a gradually or stepwise decreasing addition power. This arrangement, through optical optimization, can maintain a substantially constant low-intensity image jump across the entire lens, while maintaining other parameters unchanged. Combined with the radially continuous distance refractive correction zone, it can provide excellent visual quality for the subject, facilitate easy adaptation, and enhance wear compliance.

[0089] For example, additional second refractive areas may be distributed between two adjacent rays 4, and these additional second refractive areas may also be arranged in a regular pattern. For the sake of clarity, the pattern of the additional second refractive areas is referred to as an additional pattern 41. Figure 8A As shown. Optionally, additional patterns 41 may be provided between each two adjacent rays 4. Alternatively, additional patterns 41 may be provided between a portion of two adjacent rays 4, while no pattern is provided between another portion of two adjacent rays 4 (i.e., blank space is formed). In this case, additional patterns 41 and blank space may be provided alternately, as shown in FIG. Figure 8B As shown, all the additional patterns 41 can be distributed divergently relative to the central area 5. Each additional pattern 41 can be straight as shown in the figure, or can be curved in any way.

[0090] For example, instead of the plurality of rays 4, the plurality of first refraction areas and the plurality of second refraction areas may be distributed on the plurality of curves 42, as shown in FIG. Figures 8C-8D As shown. These curves 42 can be distributed divergently relative to the central area 5. That is, the distance between the two intersection points m1 and m2 on adjacent curves 42 and the intersection circle centered on the center of the ophthalmic lens (see the dotted line in the figure) gradually increases as the diameter of the intersection circle increases. For example, for the same intersection circle, it can intersect with all curves 42, and the distances between any two adjacent curves 42 and the intersection points of the intersection circle can be equal. For example, multiple curves 42 can be curved in the same direction, for example, in the counterclockwise direction (such as Figure 8C As shown), or in other embodiments not shown, it bends in a clockwise direction. Of course, each curve 42 can also have multiple bending directions, such as Figure 8D As shown, each curve 42 is generally wavy with two bends. In other embodiments not shown, each curve 42 may also be wavy with more bends. Furthermore, these bends may be evenly distributed on each curve 42 or unevenly distributed on each curve 42. For example, a portion close to the central region 5 may have fewer bends, while a portion away from the central region 5 may have more bends.

[0091] Whether it is ray 4 or curve 42, they are all formed by a single line. Alternatively, instead of ray 4 or curve 42, multiple first refraction areas and multiple second refraction areas can be distributed on multiple composite lines 43, such as Figure 8EAs shown. Multiple composite lines 43 can be distributed divergently relative to the central area 5. The composite line 43 can be composed of multiple straight lines, or multiple curved lines, or a combination of straight lines and curved lines. In the illustrated embodiment, the composite line 43 can include a main line extending in 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 composite lines 43 can also be repeatedly arranged along the circumferential direction of the ophthalmic lens. That is, the intersection circle centered on the center of the ophthalmic lens (see the dotted line in the figure) and the intersection points m1, m2...m formed by the corresponding parts on the multiple composite lines 43 n The distances between them are equal.

[0092] A questionnaire survey on patient comfort found that the ophthalmic lenses of the present application scored higher after long-term wear (Table 1). The questionnaire included: comfort during wear, presence of double vision, fatigue, dizziness, headache, or difficulty adapting, ease of adaptation to wearing new lenses, difficulty walking while wearing them, and ability to go up and down stairs while wearing the lenses. Comparative ophthalmic lens 1 does not have a radial, continuous area of distance refractive correction.

[0093] Table 1:

[0094] Wearing time of ophthalmic lenses 3 days 2 weeks Wearer ratings of the ophthalmic lenses of this application for comfort 9.22 9.88 Wearer ratings of comfort for comparison ophthalmic lenses 1 9.21 9.38

[0095] For example, the first refractive area 2 may have a surface shape selected from a spherical surface, an aspherical surface, or a toric surface. The multiple first refractive areas 2 may have a consistent shape or different shapes. The second refractive area 3 may also have a surface shape selected from a spherical surface, an aspherical surface, or a toric surface. The multiple second refractive areas 3 may have a consistent shape or different shapes.

[0096] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, parts, components and / or combinations thereof.

[0097] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0098] The present application has been described through the above-described embodiments, but it should be understood that the above-described embodiments are for illustrative and illustrative purposes only and are not intended to limit the present application to the described embodiments. In addition, it will be understood by those skilled in the art that the present application is not limited to the above-described embodiments, and that various variations and modifications may be made based on the teachings of the present application, all of which fall within the scope of protection claimed in the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An ophthalmic lens, characterized in that: The ophthalmic lens comprises a central area, a plurality of first refractive areas and a plurality of second refractive areas, The central area is an area surrounded by the plurality of first refraction areas, and the plurality of first refraction areas and the plurality of second refraction areas are located in an annular area surrounding the central area. The plurality of first refraction areas are closer to the center of the ophthalmic lens than the plurality of second refraction areas, and the plurality of first refraction areas are configured so that when a wearer wears the ophthalmic lens, an incident light beam passing through the plurality of first refraction areas is projected onto an area between 10 degrees and 20 degrees adjacent to the fovea of the wearer's retina. The spacing between the plurality of second refractive areas is greater than the spacing between the plurality of first refractive areas. The areas of the ophthalmic lens other than the plurality of first refractive areas and the plurality of second refractive areas have a corrective refractive power based on correcting ametropia of the eye, and the plurality of first refractive areas and the plurality of second refractive areas each have a refractive power different from the corrective refractive power. The plurality of first refractive areas are arranged on one or more first patterns, the plurality of second refractive areas are arranged on one or more second patterns, and the second patterns and the first pattern are arranged concentrically with the ophthalmic lens. The second refractive areas on the second patterns closer to the center of the ophthalmic lens in the plurality of second patterns have smaller pitches, The plurality of first refractive areas and the plurality of second refractive areas are distributed on a plurality of rays starting from the center of the ophthalmic lens, and each ray is distributed with a first refractive area and a second refractive area. The plurality of rays are evenly distributed on the ophthalmic lens, The number of the plurality of rays is 26-35.

2. The ophthalmic lens according to claim 1, wherein The plurality of first refractive areas are arranged in an annular area with an inner diameter of 9 mm and an outer diameter of 15 mm centered on the center of the ophthalmic lens.

3. The ophthalmic lens according to claim 2, wherein: The plurality of first refractive areas are arranged in an annular area with an inner diameter of 11 mm and an outer diameter of 14 mm centered on the center of the ophthalmic lens.

4. The ophthalmic lens according to claim 1, wherein The plurality of first refraction areas are arranged non-spaced apart; and / or The plurality of second refraction areas are arranged at intervals.

5. The ophthalmic lens according to claim 4, wherein Any two adjacent first refraction areas among the plurality of first refraction areas are connected to each other.

6. The ophthalmic lens according to claim 1, wherein The distance between the first pattern and the second pattern is equal to the distance between any two adjacent second patterns.

7. The ophthalmic lens according to claim 6, wherein: The distance between the first pattern and the second pattern and the distance between any two adjacent second patterns are both zero.

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

9. The ophthalmic lens according to claim 1, wherein 5mm。 The number of the first pattern is multiple, and the spacing between adjacent first patterns is less than or equal to 0. 5mm.

10. The ophthalmic lens according to claim 1, wherein The second pattern and the first pattern are both ring-shaped; and / or The farther away a pattern is from the center of the ophthalmic lens, the larger the distance between two adjacent refractive areas in the pattern.

11. The ophthalmic lens according to claim 1, wherein The diameter of the central area is between 3 and 11 mm.

12. The ophthalmic lens according to claim 11, wherein The plurality of first refraction areas and the plurality of second refraction areas are uniformly distributed within the annular area; or the plurality of first refraction areas and the plurality of second refraction areas are non-uniformly distributed within the annular area, so that the annular area has a blank area where the first refraction area and / or the second refraction area are not set.

13. The ophthalmic lens according to claim 1, wherein On each ray, the number of the first refraction areas is smaller than the number of the second refraction areas; and / or When the number of the plurality of rays is 2n, the plurality of rays form n straight lines.

14. The ophthalmic lens according to claim 1, wherein A single first refraction area among the plurality of first refraction areas and a single second refraction area among the plurality of second refraction areas have a surface shape selected from a spherical surface, an aspherical surface, or a toric surface.

15. The ophthalmic lens according to claim 1, wherein The plurality of first refractive areas add positive refractive power to the corrective refractive power; and / or the second refractive areas add positive refractive power to the corrective refractive power.

16. The ophthalmic lens according to claim 15, wherein The refractive power of the multiple first refractive areas is equal to the refractive power of the multiple second refractive areas; or along the direction away from the center of the ophthalmic lens, the multiple first refractive areas and the multiple second refractive areas have a refractive power that gradually increases or increases in a step-by-step manner as a whole; or along the direction away from the center of the ophthalmic lens, the multiple first refractive areas and the multiple second refractive areas have a refractive power that gradually decreases or decreases in a step-by-step manner as a whole.

17. The ophthalmic lens according to claim 1, wherein Projections of the plurality of second refractive zones on the ophthalmic lens have equal areas.

18. A pair of frame glasses, characterized in that: The frame glasses are provided with an ophthalmic lens according to any one of claims 1 to 17.

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