Microstructure lens based on peripheral retina data and design method

Abstract

The invention discloses a peripheral retina data-based microstructure lens and a design method, and the lens comprises a mother lens which is provided with a first surface facing the retina of a human eye; the first surface comprises a central luminosity area, a luminosity modulation area and a luminosity compensation area which are arranged in sequence; the central luminosity area, the luminosity modulation area and the luminosity compensation area are respectively arranged around the optical center in a concentric circle mode; the luminosity modulation area is provided with a plurality of first areas which are divided into equal areas, the luminosity compensation area is provided with a plurality of second areas which are divided into equal areas, and the first areas and the second areas are adjacent in the first direction and jointly matched so as to be used for intervening the imaging quality of the retina within the pupil range. Peripheral retina data is adopted to carry out design compensation on spectacle lenses, so that a more accurate and more personalized correction mode is realized, and an optimal management method for inhibiting ametropia can be selected according to the actual condition of a wearer.

Description

Technical Field

[0001] The present application belongs to the field of ophthalmic optics technology, and specifically relates to a microstructure lens and a design method based on peripheral retinal data. Background Art

[0002] The peripheral area of ​​the retina can be used as a defocus control area to change the growth and refractive state of the human eye. Specifically, peripheral hyperopic defocus will lead to axial myopia, and peripheral myopic defocus will even lead to axial hyperopia. In the past, ophthalmometers usually only performed refractive power detection on the central area of ​​the retina. The hyperopic defocus or myopic defocus in the peripheral area was calculated based on theoretical quantitative thresholds, which were designed on the area outside the optical center of the lens to prevent the formation of peripheral myopic defocus or hyperopic defocus of the retina after wearing the glasses. However, the refractive state and corneal topography distribution of each person's eyes are different. Using quantitative thresholds to design the defocus amount of the glasses obviously does not meet the needs of each eye. At present, the peripheral defocus amount of traditional defocus lenses is usually only set on the microstructure of the lens, such as using a fixed or progressive defocus amount setting. Since there is no peripheral retinal refractive power data for each wearer, it may lead to further development of refractive errors. Summary of the Invention

[0003] Purpose of the invention: The embodiments of the present application provide a microstructured lens and design method based on peripheral retinal data to solve the problem of further development of refractive error caused by the inability of traditional defocused lenses to meet the needs of different eyes.

[0004] Technical solution: The present application discloses a microstructured lens based on peripheral retinal data, comprising: A mother lens, the mother lens having a first surface facing the retina of a human eye; the first surface having an optical center and an edge, the optical center coinciding with the geometric center of the mother lens; the first surface having a first direction, the first direction being a direction extending from the optical center to the edge; The first surface includes a central luminosity area, a luminosity modulation area, and a luminosity compensation area sequentially arranged along the first direction; the central luminosity area, the luminosity modulation area, and the luminosity compensation area are respectively arranged around the optical center in a concentric circle manner; The photometric modulation area has a plurality of first areas divided by equal areas, and the photometric compensation area has a plurality of second areas divided by equal areas. The first areas and the second areas are adjacent to each other in the first direction and cooperate with each other to intervene in the imaging quality of the retina within the pupil range.

[0005] In some embodiments, the first region has a first opening toward the edge, and the second region has a second opening toward the first optical center; wherein a first opening of the first region at least completely covers a second opening of the second region.

[0006] In some embodiments, the number of the first regions is equal to the number of the second regions, wherein the first regions correspond to the second regions one-to-one, and the first opening coincides with the second opening.

[0007] In some embodiments, the number of the first regions is smaller than the number of the second regions, wherein the first region corresponds to at least two of the second regions, and the first opening is equally divided by the second opening.

[0008] In some embodiments, the number of the first regions is smaller than the number of the second regions, wherein the first region corresponds to at least three of the second regions, and a portion of the first opening overlaps with a second opening of one of the second regions, and another portion of the first opening overlaps with a portion of the second opening of the remaining second regions.

[0009] In some embodiments, the number of the first regions is selected from any one of 4, 6, 8, 10, 12, and 16; the number of the second regions is selected from any one of 8, 10, 12, and 16.

[0010] In some embodiments, the mother lens further comprises a second surface disposed away from the retina of a human eye, the second surface comprising a central area and a microstructure area sequentially disposed along the first direction, the central area and the microstructure area being concentrically disposed around the optical center. The spectacle lens further comprises a plurality of micro lenses, which are arranged in the microstructure area and are used to cooperate with the mother lens to form a stimulation signal.

[0011] In some embodiments, among the plurality of microlenses, at least two of the microlenses are connected to each other; or The plurality of micro lenses are spaced apart from each other.

[0012] In some embodiments, the area of ​​the central luminosity region is , the area of ​​the central region is ,satisfy: ; in, BVD Indicates the distance between the lens and the eye. ct Indicates the center thickness of the mother mirror.

[0013] In some embodiments, the area of ​​the photometric modulation region is , the area of ​​the microstructure region is ,satisfy: ; in, BVD Indicates the distance between the lens and the eye. ct Indicates the center thickness of the mother mirror.

[0014] In some embodiments, the present application further provides a method for designing a microstructured lens based on peripheral retinal data, comprising the following steps: Obtain human eye retinal refractive data and divide the refractive data distribution into regions; Providing a mother lens, the mother lens having a first surface, the first surface having an optical center and an edge; calculating a basic surface shape of the first surface according to the human eye retinal refraction data to obtain a basic sagittal height; Establishing a diopter mapping relationship between the retina and the first surface based on the area division and obtaining design parameters, and forming a central luminosity area, a luminosity modulation area, and a luminosity compensation area sequentially arranged from the optical center to the edge on the first surface based on the design parameters; Dividing the light modulation area into a plurality of first areas with equal areas, and dividing the light compensation area into a plurality of second areas with equal areas; Based on the basic sagittal height, the refractive data of the first area is compensated in combination with the refractive data of the second area and the central luminosity area. After smoothing, the designed sagittal heights of the central luminosity area, the luminosity modulation area, and the luminosity compensation area are obtained respectively. The microstructured eyeglass lens is formed according to the designed sagittal heights. The first area and the second area are adjacent to each other and cooperate with each other to intervene in the imaging quality of the retina within the pupil range.

[0015] In some embodiments, in the step of obtaining retinal refractive data of a human eye and dividing the refractive data distribution into regions, the regional division includes a retinal central area, a first retinal measurement area, and a second retinal measurement area, which are arranged in sequence from the center of the retina to the edge of the retina, and the retinal central area, the first retinal measurement area, and the second retinal measurement area are respectively arranged around the center of the retina.

[0016] In some embodiments, in the step of calculating the basic surface shape of the first surface according to the human eye retinal refraction data, the calculation formula is: ; in, As the basic arrow height, n is the refractive index of the mother mirror, Z 3. Z 5 are Zernike astigmatism coefficients, Pis the overall retinal refractive data, P 0 is the diopter of the central area of ​​the retina, represents the first weight coefficient, Represents the second weight coefficient.

[0017] In some embodiments, in the step of establishing a diopter mapping relationship between the retina and the first surface according to the area division and obtaining design parameters, the mapping relationship is expressed as: ; in, L represents a design parameter of any one of the central luminance area, the luminance modulation area, and the luminance compensation area, BVD is the eye distance, d is the corneal diameter, Rc is the radius of corneal curvature, Rr is the radius of curvature of the retina, is the field of view angle.

[0018] In some embodiments, the step of compensating the refractive data of the first area based on the basic sag in combination with the refractive data of the second area and the central luminosity area further includes: respectively acquiring first refraction data of the first area, second refraction data of the second area, and third refraction data of the central diopter area; The first refractive index data is compensated according to the basic sagittal height, the second refractive index data, and the third refractive index data to obtain a compensated sagittal height.

[0019] In some embodiments, in the step of compensating the first refractive data according to the basic sagittal height, the second refractive data and the third refractive data to obtain the compensated sagittal height, If all the second refractive data are less than the minimum threshold A, where A is in the range of 0.4≤A≤1.5, in diopters, then all the first areas are compensated for the minimum threshold A, and the compensated sagittal height is z The calculation formula for 1 is: ;and , ; in, z 0 is the base height, represents the sag of the central luminosity area, represents the vector height of the luminosity compensation area; D B is the refractive data of the first area; D D is the second refractive data; DN is the third refractive data; n is the refractive index of the mother mirror; x The horizontal coordinate of the sag, y The ordinate representing the sagittal height; If at least one of all the second refractive data is greater than or equal to the minimum threshold A, the compensation amount of all the first areas is D C , and the compensated arrow height z The calculation formula for 1 is: ;and , ; in, z 0 is the base height, represents the sag of the central luminosity area, represents the vector height of the luminosity compensation area; D B is the refractive data of the first area; D D is the second refractive data; D N is the third refractive data; n is the refractive index of the mother mirror; x The horizontal coordinate of the sag, y The ordinate representing the sagittal height; in, D C The specific calculation expression is:

[0020] Where, Indicates the difference between the maximum value of the refractive index in the diopter compensation area and the refractive index perpendicular to the angle. m , n and p All are compensation coefficients, and 1.25≤ m ≤2, 1.5≤ n ≤2.25,1.5≤ p ≤3; 0.8< A 1<2, 0.8< A 2<2,0< A 3≤1.

[0021] In some embodiments, in the step of obtaining the design sags of the central luminance area, the luminance modulation area, and the luminance compensation area respectively through smoothing, the calculation formula of the design sags is: ; Where, represents the designed sag obtained by performing Zernike polynomial fitting on the sag data of the photometric modulation area, Designing a fitting coefficient corresponding to the vector height for the photometric modulation area; represents the designed sag obtained by performing Zernike polynomial fitting on the sag data of the central luminosity area and the luminosity compensation area, Designing a fitting coefficient corresponding to the sag for the luminosity compensation area; represents the sag of the central luminosity area, represents the vector height of the luminosity compensation area.

[0022] Beneficial Effects: Compared to existing technologies, this application utilizes peripheral retinal data obtained from devices such as a wide-field retinal refraction meter (VPR), and uses this data to design and compensate for eyeglass lenses. This facilitates more precise and personalized correction methods, and allows for the selection of the optimal management method for suppressing refractive error based on the wearer's actual condition. Examples demonstrate that this method, under the same surface conditions where the microstructures are located, can achieve a more effective management effect in suppressing the further development of refractive error, providing a new approach for the optimized design of microstructured lenses. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A schematic diagram of the first surface structure of the microstructured eyeglass lens provided in an embodiment of the present application; Figure 2 for Figure 1 A partial enlarged view of point A in the middle; Figure 3 A schematic diagram of the first surface structure of another microstructured eyeglass lens provided in an embodiment of the present application; Figure 4 A schematic diagram of the first surface structure of another microstructured eyeglass lens provided in an embodiment of the present application; Figure 5 A schematic diagram of the first surface structure of another microstructured eyeglass lens provided in an embodiment of the present application; Figure 6 A schematic diagram of the second surface structure of the microstructured eyeglass lens provided in this application; Figure 7 A schematic diagram of retinal refractive data division provided in an embodiment of the present application; Figure 8 A mapping diagram of the lens-eye system provided in an embodiment of the present application; Figure 9 A distribution diagram of the first weight coefficient provided in an embodiment of the present application; Figure 10 A distribution diagram of the second weight coefficient provided in an embodiment of the present application; Figure 11 The retinal refractive topography data map provided in the embodiment of the present application; Figure 12 This is a sagittal height data diagram of the first surface within a single area (45° range); Figure 13 This is the sagittal height data diagram of the first surface obtained by smoothing; Figure 14 Astigmatism distribution diagram of the first surface design provided in an embodiment of the present application; Figure 15 MTF curves with and without surface design provided in the embodiments of the present application; Figure numerals, 1-mother mirror, 11-first surface, 12-second surface, 111-optical center, 112-edge, 121-central area, 122-microstructure area, 3-microlens, 21-central photometric area, 22-photometric modulation area, 23-photometric compensation area, 221-first area, 231-second area, 2211-first opening, 2311-second opening, 41-retinal central area, 42-first retinal measurement area, 43-second retinal measurement area. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0026] In the description of this application, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting this application. In the description of this application, "plurality" means two or more, and "at least one" means one, two, or more than two, unless otherwise expressly and specifically defined.

[0027] See also Figure 1A microstructure lens based on peripheral retinal data comprises: a mother lens 1, the mother lens 1 having a first surface 11 arranged toward the retina of a human eye; the first surface 11 has an optical center 111 and an edge 112, the optical center 111 coincides with the geometric center of the mother lens 1; the first surface 11 has a first direction, which is a direction extending from the optical center 111 to the edge 112; the first surface 11 comprises a central luminosity area 21, a luminosity modulation area 22, and a luminosity compensation area 23 arranged in sequence along the first direction; the central luminosity area 21, the luminosity modulation area 22, and the luminosity compensation area 23 are respectively arranged around the optical center 111 in a concentric circle manner; wherein the luminosity modulation area 22 has a plurality of first areas 221 divided into equal areas, and the luminosity compensation area 23 has a plurality of second areas 231 divided into equal areas, the first areas 221 and the second areas 231 are adjacent to each other in the first direction and cooperate with each other to intervene in the imaging quality of the retina within the pupil range.

[0028] It can be understood that in the micro-structured eyeglasses of the present application, since the central luminosity area 21, the luminosity modulation area 22 and the luminosity compensation area 23 are provided on the first surface 111 facing the retina, the effect of classifying and compensating the first surface 111 according to the peripheral refractive conditions of the human eye retina is achieved; by further dividing the luminosity modulation area 22 and the luminosity compensation area 23 into equal parts and forming a first area 221 and a second area 231 respectively, the first and second areas are divided into equal areas (such as rings or sectors) to ensure that the defocus energy is evenly distributed within the pupil range; in addition, the second area 231 can determine the personalized compensation amount, and the first area 221 can balance the refractive change trends of the luminosity compensation area 23 and the central luminosity interval 21 in each equal area area, and can better match the personalized compensation amount of the luminosity compensation area 23. Therefore, the first area 221 can assist the second area 231 to further enhance the intervention effect of the compensation amount and balance the conflict between central vision and peripheral defocus.

[0029] In some embodiments, see further Figure 1 and Figure 2 The first region 221 has a first opening 2211 facing the edge 112, and the second region 231 has a second opening 2311 facing the optical center 111. The first opening 2211 of one first region 221 at least completely covers the second opening 2311 of one second region 231. When the above structural form is met, this structural layout enables the light modulation region 22 and the light compensation region 23 to produce overlapping defocus signal coverage in the first direction, reducing the defocus gradient change rate of adjacent regions and local contrast fluctuations in retinal imaging, thereby avoiding visual jumps.

[0030] In some embodiments, see further Figure 1 or Figure 3The number of the first regions 221 is equal to the number of the second regions 231 , wherein the first regions 221 correspond to the second regions 231 one to one, and the first openings 2211 and the second openings 2311 overlap.

[0031] In some embodiments, see further Figure 4 The number of the first regions 221 is smaller than the number of the second regions 231 , wherein each first region 221 corresponds to at least two second regions 231 , and the first opening 2211 is equally divided by the second opening 2311 .

[0032] In some embodiments, see further Figure 5 , the number of first regions 221 is less than the number of second regions 231, wherein the first region 221 corresponds to at least three second regions 231, and a portion of the first opening 2211 overlaps with the second opening 2311 of one second region 231, and another portion of the first opening 2211 overlaps with a portion of the second opening 2311 of the remaining second regions 231.

[0033] It should be noted that Figure 1 、 Figure 3 、 Figure 4 and Figure 5 These are only some of the arrangement methods used as examples. However, no matter which method is used, it is necessary to ensure that the number of the first areas 221 is less than or equal to the number of the second areas 231 , so as to avoid errors in the data sampling of the photometric modulation area 22 .

[0034] In some embodiments, the number of first regions 221 is selected from any one of 4, 6, 8, 10, 12, and 16; and the number of second regions 231 is selected from any one of 8, 10, 12, and 16. It is understood that, considering the optical symmetry of the human eye, dividing the light modulation region 22 and the light compensation region 23 into equal areas can identify whether asymmetric refractive error exists while covering more possible axial position changes when performing regional refractive analysis, thereby simplifying data, improving calculations, and meeting the sampling interval of the measurement equipment without losing accuracy.

[0035] It should be noted that Figure 1 Assume that the number of the first area 221 is 8, namely B1, B2, B3, B4, B5, B6, B7, and B8; the number of the second area 231 is 8, namely D1, D2, D3, D4, D5, D6, D7, and D8. Figure 1 The structure corresponds to the right eye, and the 8 equally divided areas include the superior area, inferior area, nasal area, nasal smooth area, temporal area and temporal smooth area. The smooth area here refers to the transition area between the nasal or temporal side and the superior (inferior) side.

[0036] Taking the distribution of the second area 231 as an example, the second area at each angle has a specific function, as follows: within the range of 0°-45°, the second area 231 can strengthen the defocus signal stimulation in the temporal periphery; within the range of 45°-90°, the second area 231 can compensate for the defocus attenuation when the eyeball rotates upward; within the range of 90°-135°, the second area 231 can balance the vertical and horizontal defocus to prevent visual fatigue caused by overcorrection; within the range of 135°-180°, the second area 231 can moderately weaken the nasal defocus to avoid interfering with the binocular fusion function; within the range of 180°-225°, the second area 231 can dynamically compensate for the downward eye position during reading; within the range of 225°-270°, the second area 231 can suppress the escape of the defocus signal of the lower retina; within the range of 270°-315°, the second area 231 can smoothly connect the defocus areas; and within the range of 315°-360°, the second area 231 can maintain a natural transition of central vision.

[0037] In some embodiments, see further Figure 6 The mother lens 1 also includes a second surface 12 arranged away from the retina of the human eye. The second surface 12 has a central area 121 and a microstructure area 122 arranged in sequence along the first direction. The central area 121 and the microstructure area 122 are respectively arranged around the optical center 111 in a concentric circle manner; the lens also includes a plurality of microlenses 3, which are arranged in the microstructure area 122 and are used to cooperate with the mother lens 1 to form a stimulation signal.

[0038] It is understandable that this embodiment also provides a central area 121 and a microstructure area 122 on the second surface 12 opposite to the first surface 11, and a microlens 3 is provided in the microstructure area 122; wherein, the microstructure area 122 of the second surface 12 generates dynamic light signals by forming microlenses, stimulating the periphery of the retina, thereby slowing down the growth of the eye axis. At the same time, the central area 121 ensures central vision, which can further enhance the development effect of the refractive array, improve visual quality, expand personalized adaptation, and balance dynamic stimulation adjustment. At the same time, the first surface 11 handles refractive compensation and correction, and the second surface 12 provides additional stimulation signals. The combination of the two may complement each other in terms of defocus control, aberration correction, dynamic response, etc. The synergy between the first surface 11 and the second surface 12 can bring better optical performance integration. Therefore, the microstructured eyeglasses of this embodiment achieve the synergy between defocus stimulation efficiency and visual quality, and at the same time provide a basis for personalized parameter adjustment.

[0039] In some embodiments, among the plurality of microlenses 3 , at least two microlenses 3 are connected to each other; or, the plurality of microlenses 3 are spaced apart from each other.

[0040] In some embodiments, the surface shape of the microlens 3 is selected from at least one of a spherical surface, an aspherical surface, a cylindrical surface, a conical surface, and a free-form surface.

[0041] In some embodiments, the term "optical center 111" refers to the axially symmetrical center point of the mother lens 1, and can also be understood as the symmetrical center point of the mother lens 1 along the optical axis. Light will not be deflected or refracted when passing through the optical center 111, that is, the propagation direction of the light beam will not deviate from the axis. The term "geometric center" is the symmetrical center point of the shape or boundary of the mother lens 1, which is determined based on the geometric properties of the mother lens 1. In this embodiment, the optical center 111 coincides with the geometric center, and light propagating through the optical center 111 will not be deflected or refracted, which helps maintain the collimation of the light and the stability of the focus, thereby simplifying the structural design of the lens.

[0042] In some embodiments, the area of ​​the central luminosity region 21 is , the area of ​​the central area 121 is ,satisfy: ; in, BVD Indicates the distance between the lens and the eye. ct Indicates the center thickness of the mother mirror 1.

[0043] It is understandable that the eye distance BVD The range is 8 to 15 mm, with a center thickness of ct The range is 1 to 3.5 mm. When the above range is met, the accuracy of the center correction can be guaranteed within this range. At the same time, the central luminosity area 21 and the central area 121 work together to make the peripheral defocus area within the pupil range further away from the center, generating a stronger stimulation signal.

[0044] In some embodiments, the area of ​​the light modulation region 22 is , the area of ​​the microstructure region 122 is ,satisfy: ; in, BVD Indicates the distance between the lens and the eye. ct Indicates the center thickness of the mother mirror 1.

[0045] It is understandable that the eye distance BVD The range is 8 to 15 mm, with a center thickness of ct The range is 1 to 3.5 mm. When the above range is met, taking into account the variation range of the eye-to-eye distance and the center thickness of the lens to ensure that it is within the pupil range, the curvature change of the photometric modulation area 22 and the defocus amount of the microstructure area 122 form a superimposed effect to enhance the peripheral defocus.

[0046] In some embodiments, the present application further provides a method for designing a microstructured lens based on peripheral retinal data, comprising the following steps: Obtain human eye retinal refractive data and divide the refractive data distribution into regions; A mother lens 1 is provided, wherein the mother lens 1 has a first surface 11, and the first surface 11 has an optical center 111 and an edge 112; a basic surface shape of the first surface 11 is calculated according to human retinal refraction data to obtain a basic sagittal height; Based on the regional division, a diopter mapping relationship between the retina and the first surface 11 is established, and design parameters are obtained. Based on the design parameters, a central luminosity region 21, a luminosity modulation region 22, and a luminosity compensation region 23 are formed on the first surface 11 in sequence from the optical center 111 to the edge 112. The light modulation area 22 is divided into a plurality of first areas 221 with equal areas, and the light compensation area 23 is divided into a plurality of second areas 231 with equal areas; Based on the basic sagittal height, the refractive data of the first area 221 is compensated in combination with the refractive data of the second area 231 and the central luminosity area 21. After smoothing, the designed sagittal heights of the central luminosity area 21, the luminosity modulation area 22, and the luminosity compensation area 23 are obtained respectively. The microstructured eyeglass lens is formed according to the designed sagittal heights. The first area 221 and the second area 231 are adjacent to each other and cooperate with each other to intervene in the imaging quality of the retina within the pupil range.

[0047] It can be understood that the method of this embodiment obtains the refractive data of the human eye retina and divides the area to establish a refractive power mapping relationship between the retina and the lens surface, so that the division of the central luminosity area 21, the luminosity modulation area 22 and the luminosity compensation area 23 strictly corresponds to the optical characteristics of the eyeball. This design breaks through the limitation of traditional lenses that only rely on central refractive correction. It can dynamically adjust the microstructure parameters according to the defocus distribution characteristics of the peripheral retina, realize individualized and precise refractive intervention, and effectively improve the myopia control effect. In addition, the first area 221 and the second area 231 are divided into equal areas, combined with the refractive data compensation and smoothing processing technology of the adjacent areas, to ensure that the defocus energy is distributed in a gradient within the pupil range, avoiding the problem of decreased retinal imaging contrast caused by defocus mutations in traditional multifocal lenses. At the same time, the compensation area modulates the parameters of the modulation area to control the wavefront aberration of the peripheral field of view, significantly reducing side effects such as glare and visual fatigue. By linking the microstructure sag design parameters of the photometric modulation zone 22 and the photometric compensation zone 23, the lens maintains a stable defocus distribution within a pupil diameter range of 2-6mm. This significantly increases the intensity of retinal defocus intervention compared to traditional single-zone designs, thereby more effectively inhibiting abnormal axial length growth. A layered calculation method based on the base sag and the zone-specific sag, combined with a smoothing algorithm, ensures microstructure machining accuracy while avoiding scattering noise caused by high-frequency surface fluctuations.

[0048] In some embodiments, in the step of obtaining the retinal refractive data of the human eye and dividing the refractive data distribution into regions, see Figure 11 , which is a retinal refractive data diagram of a human eye; the area division includes a retinal central area 41, a first retinal measurement area 42, and a second retinal measurement area 43, which are arranged in sequence from the center of the retina to the edge of the retina, and the retinal central area 41, the first retinal measurement area 42, and the second retinal measurement area 43 are respectively arranged around the center of the retina.

[0049] See further Figure 7 , set up a rectangular coordinate system for the retinal area, where the axis is the line at 0° (180°) and the direction is horizontal to the right; the y-axis is the line at 90° (270°) and the direction is vertically upward, and the coordinate origin is O, which is defined as the center of the retina. Among them, the retinal center area 41 is located within the detection area with a radius of r1, and the radius range is the retinal center area 41; the first retinal measurement area 42 is between the radius r1 and r2, and the second retinal measurement area 43 is between the radius r2 and r3. Among them, the first retinal measurement area 42 and the second retinal measurement area 43 are divided equally at intervals of 45°, and each dividing line has a corresponding axial position distribution, where the axis outside the brackets is the right eye axis and the axis inside the brackets is the left eye axis. By setting up multiple detection areas in different areas of the retina, the peripheral conditions of the retina can be detected and analyzed more accurately.

[0050] In some embodiments, in the step of calculating the basic surface shape of the first surface 11 according to the human eye retinal refractive data, the calculation formula is: ; in, As the basic arrow height, n is the refractive index of the mother mirror 1, Z 3. Z 5 are Zernike astigmatism coefficients, P is the overall retinal refractive data, P 0 is the diopter of the central area of ​​the retina, represents the first weight coefficient, Represents the second weight coefficient.

[0051] It should be noted that the astigmatism coefficient and the overall retinal refractive data P , the refractive power of the central area of ​​the retina P 0 are all measured by a wide-field retinal refractometer (VPR). A wide-field retinal refractometer specifically refers to an instrument that provides and detects the refractive state of the retina through galvanometer technology and wavefront array technology. It can measure central refractive power including spherical lens, cylindrical lens and equivalent spherical lens, point spread function, modulation transfer function and low-order and high-order aberrations. Figure 9 , the first weight coefficient specifically refers to the weight coefficient of the basic sagittal optical power; see Figure 10 , the second weight coefficient specifically refers to the weight coefficient of the basic sag astigmatism; the specific expression is as follows:

[0052]

[0053] in, N The area representing the central luminosity region 21, B i represents the area of ​​the light intensity modulation area 22, D i The area representing the luminosity compensation region 23 is shown.

[0054] In some embodiments, see further Figure 8 In the step of establishing a diopter mapping relationship between the retina and the first surface 11 according to the regional division and obtaining the design parameters, the mapping relationship is expressed as: ; in, L represents the design parameters of any one of the central luminance area 21, the luminance modulation area 22 and the luminance compensation area 23, BVD is the eye distance, d is the corneal diameter, Rc is the radius of corneal curvature, Rr is the radius of curvature of the retina, is the field of view angle.

[0055] It should be noted that the design parameter specifically refers to the distance from the optical center 111 to the edge of any one of the central luminosity region 21 , the luminosity modulation region 22 , and the luminosity compensation region 23 ; BVD Satisfy 8≤BVD≤15, unit is mm; d Satisfy 9≤d≤12.5, unit is millimeter; Rc Satisfy 6≤ R c≤9, unit is mm; Rr Satisfy 7.5≤ R r≤9, unit is millimeters.

[0056] Further, Figure 1 For example, the design parameters include L1, L2, and L3, which represent the distances from the edges of the central luminance area 21, the luminance modulation area 22, and the luminance compensation area 23 to the optical center 111, respectively. The calculation formulas for L1, L2, and L3 are: ,and ; ,and ; ,and .

[0057] In some embodiments, the step of compensating the refractive data of the first region 221 based on the base sag in combination with the refractive data of the second region 231 and the central luminosity region 21 further includes: respectively acquiring first refraction data of the first area 221 , second refraction data of the second area 231 , and third refraction data of the central optics area 21 ; The first refractive index data is compensated according to the basic sagittal height, the second refractive index data and the third refractive index data to obtain the compensated sagittal height.

[0058] As can be understood, by acquiring independent refractive data for the first zone 221, the second zone 231, and the central optic zone 21, and dynamically compensating the refractive data of the first zone based on the base sagittal height, a precise correlation between the optical parameters of each zone is achieved. This overcomes the limitation of traditional lens design that relies solely on single-zone parameter calculations. The microstructure sagittal height of the modulation zone (first zone) is inversely corrected based on the base correction requirements of the central zone (third refractive data) and the smooth transition characteristics of the compensation zone (second refractive data), mathematically ensuring the continuity of the defocus distribution and visual stability during pupil movement. Furthermore, by using the second and third refractive data as constraints in the compensation calculation, the final sagittal height of the modulation zone simultaneously meets the optical connection requirements of the two adjacent zones. In the compensation calculation, using the base sagittal height as a reference surface shape, combined with the hierarchical correction of the zone-by-zone refractive data, achieves a more uniform distribution of microstructure height errors. By separately acquiring and processing refractive data from different zones, differentiated compensation can be performed in the modulation zone based on the individual characteristics of the patient's retinal defocus distribution (such as nasotemporal asymmetry). For example, in areas with higher temporal retinal defocus, by increasing the weight coefficient of the second refractive data, the compensated vector height can additionally introduce a defocus gradient, thereby more accurately matching the bio-optical characteristics of the eyeball and improving the efficiency of myopia control.

[0059] In some embodiments, in the step of compensating the first refractive data according to the base sagittal height, the second refractive data, and the third refractive data to obtain the compensated sagittal height, If all the second refractive index data are less than the minimum threshold value A, where A is in the range of 0.4≤A≤1.5 and the unit is diopters, then all the first areas are compensated for the minimum threshold value A, and the compensated sagittal height is z The calculation formula for 1 is: ;and , ; in, z 0 is the base height, represents the sag of the central luminosity area, Indicates the sag of the photometric compensation area; D B is the first refractive data; D D is the second refractive data; D N is the third refractive data; n is the refractive index of the mother mirror 1; x The horizontal coordinate of the sag, y The ordinate representing the sagittal height; If at least one of all the second refractive data is greater than or equal to the minimum threshold A, the compensation amount of all the first areas is D C, and the compensated arrow height z The calculation formula for 1 is: ;and , ; in, z 0 is the base height, represents the sag of the central luminosity region 21, represents the sag of the luminosity compensation area 23; D B is the first refractive data; D D is the second refractive data; D N is the third refractive data; n is the refractive index of the mother mirror 1; x The horizontal coordinate of the sag, y The ordinate representing the sagittal height; in, D C The specific calculation expression is:

[0060] Where, Indicates the difference between the maximum value of the refractive index in the diopter compensation area and the refractive index perpendicular to the angle. m , n and p All are compensation coefficients, and 1.25≤ m ≤2, 1.5≤ n ≤2.25,1.5≤ p ≤3; 0.8< A 1<2, 0.8< A 2<2,0< A 3≤1. Preferably, A1=1, A2=1, and A3=0.4.

[0061] In some embodiments, in the step of obtaining the design sags of the central luminance region 21 , the luminance modulation region 22 , and the luminance compensation region 23 respectively after smoothing, the calculation formula of the design sags is: ; Where, represents the designed sag obtained by performing Zernike polynomial fitting on the sag data of the photometric modulation area 22, Designing a fitting coefficient corresponding to the vector height for the photometric modulation region 11; It represents the designed sag obtained by performing Zernike polynomial fitting on the sag data of the central luminosity area 21 and the luminosity compensation area 23, Design the fitting coefficient corresponding to the sag for the luminosity compensation area 23; represents the sag of the central luminosity region 21, represents the sag of the luminosity compensation area 23 .

[0062] In some embodiments, the lens of this embodiment is made of a polymer material or an inorganic non-metallic material. The polymer material includes a thermoplastic resin or a thermosetting resin, and the inorganic non-metallic material includes glass. Thermoplastic resins include polycarbonate or polymethyl methacrylate; thermosetting resins include acrylic resins, episulfide resins, thiourethane resins, allyl resins, and polyurethanes.

[0063] In some embodiments, a coating is formed on at least one side of the lens surface. The coating may include a transparent coating to increase the lens' light transmittance, a hard coating to increase the lens' durability, a reflective coating to block harmful light, an anti-reflection and anti-reflection coating to enhance image visibility, a polarizing film with a color-changing function, or other color-changing films doped with UV-sensitive materials. The coating itself can have different colors, and the visually visible color under reflective conditions can be green, blue, yellow, purple, or other colors.

[0064] Example The human eye is tested using a wide-field retinal diopter meter to obtain the retinal refractive distribution as follows: Figure 11 As shown, and obtain its corresponding astigmatism coefficient Z 3=-0.179582, Z 5=1.17691, the first weight coefficient and the second weight coefficient used in the calculation process are as follows: Figure 9 and Figure 10 As shown, through The expression can calculate the basic surface shape of the first surface 11 of the lens; calculate the field angle used The angles are 10°, 15° and 20°, corresponding to the central photometric area 21, the photometric modulation area 22 and the photometric compensation area 23 respectively; the eye-to-eye distance and corneal diameter are both 12 mm, Rc is 41 mm, and Rr is 9.7 mm. Substituting these into the calculation formula for L, we get L1=14.92 mm, L2=19.57 mm, and L3=24.43 mm. Figure 12 is the sagittal height of the lens back surface in the 45° area, Figure 13 The final surface height of the lens back surface after smoothing is shown in the figure. Figure 14 To further illustrate the application effect of this design in myopia management, a lens eye model is established, and the surface of the microstructure area of ​​the second surface 12 is as follows Figure 6 The distribution shown in FIG. 1 is shown in FIG. 2 , respectively, when the first surface 11 is set as a single-focus lens without design and a surface type with a central luminosity area 21, a luminosity modulation area 22 and a luminosity compensation area 23, the obtained MTF curve is as follows: Figure 15 As shown in the figure, it can be found that the MTF value of the microstructure lens designed with a central luminosity area 21, a luminosity modulation area 22 and a luminosity compensation area 23 is lower than that of the lens without a back surface design in the low-frequency region, and is similar to that of the lens without a back surface design in the high-frequency region. Therefore, this design is also effective in myopia management.

[0065] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0066] The above is a detailed introduction to a microstructured lens and design method based on peripheral retinal data provided in the embodiments of the present application, and specific examples are used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application; ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A microstructured lens based on peripheral retinal data, characterized in that: include: A mother mirror (1), the mother mirror (1) having a first surface (11) disposed toward a retina of a human eye; the first surface (11) having an optical center (111) and an edge (112), the optical center (111) coinciding with a geometric center of the mother mirror (1); the first surface (11) having a first direction, the first direction being a direction extending from the optical center (111) toward the edge (112); The first surface (11) comprises a central luminosity area (21), a luminosity modulation area (22), and a luminosity compensation area (23) arranged in sequence along the first direction; the central luminosity area (21), the luminosity modulation area (22), and the luminosity compensation area (23) are respectively arranged around the optical center (111); The photometric modulation area (22) has a plurality of first areas (221) divided into equal areas, and the photometric compensation area (23) has a plurality of second areas (231) divided into equal areas. The first areas (221) and the second areas (231) are adjacent to each other in the first direction and cooperate with each other to intervene in the imaging quality of the retina within the pupil range.

2. The microstructured lens based on peripheral retinal data according to claim 1, characterized in that: The first region (221) has a first opening (2211) facing the edge (112), and the second region (231) has a second opening (2311) facing the second optical center (111); wherein a first opening (2211) of the first region (221) at least completely covers a second opening (2311) of the second region (231).

3. The microstructured lens based on peripheral retinal data according to claim 2, characterized in that: The number of the first regions (221) is equal to the number of the second regions (231), wherein the first regions (221) correspond one-to-one to the second regions (231), and the first opening (2211) and the second opening (2311) overlap.

4. The microstructured lens based on peripheral retinal data according to claim 2, characterized in that: The number of the first regions (221) is smaller than the number of the second regions (231), wherein the first region (221) corresponds to at least two of the second regions (231), and the first opening (2211) is equally divided by the second opening (2311).

5. The microstructured lens based on peripheral retinal data according to claim 2, characterized in that: The number of the first regions (221) is smaller than the number of the second regions (231), wherein the first region (221) corresponds to at least three second regions (231), and a portion of the first opening (2211) overlaps with a second opening (2311) of one second region (231), and another portion of the first opening (2211) overlaps with a portion of the second opening (2311) of the remaining second regions (231).

6. The microstructured lens based on peripheral retinal data according to claim 1, characterized in that: The number of the first regions (221) is selected from any one of 4, 6, 8, 10, 12, and 16; the number of the second regions (231) is selected from any one of 4, 6, 8, 10, 12, and 16.

7. The microstructured lens based on peripheral retinal data according to claim 1, characterized in that: The mother lens (1) further comprises a second surface (12) arranged away from the retina of a human eye, the second surface (12) comprising a central area (121) and a microstructure area (122) arranged in sequence along the first direction, the central area (121) and the microstructure area (122) being arranged around the optical center (111) respectively; The spectacle lens further comprises a plurality of micro lenses (3), wherein the micro lenses (3) are arranged in the microstructure area (122) and are used to cooperate with the mother lens (1) to form a stimulation signal.

8. The microstructured lens based on peripheral retinal data according to claim 7, characterized in that: Among the plurality of microlenses (3), at least two of the microlenses (3) are connected to each other; or The plurality of microlenses (3) are arranged at intervals from each other.

9. The microstructured lens based on peripheral retinal data according to claim 7, characterized in that: The area of ​​the central luminosity region (21) is , the area of ​​the central region (121) is ,satisfy: ； in, BVD Indicates the eye distance. ct Indicates the center thickness of the mother mirror (1).

10. The microstructure lens based on peripheral retinal data according to claim 7, characterized in that: The area of ​​the photometric modulation region (22) is , the area of ​​the microstructure region (122) is ,satisfy: ； in, BVD Indicates the eye distance. ct Indicates the center thickness of the mother mirror (1).

11. A method for designing microstructured lenses based on peripheral retinal data, characterized in that: The following steps are involved: Obtain human eye retinal refractive data and divide the refractive data distribution into regions; A mother mirror (1) is provided, wherein the mother mirror (1) has a first surface (11), and the first surface (11) has an optical center (111) and an edge (112); a basic surface shape of the first surface (11) is calculated according to the human eye retinal refraction data to obtain a basic sagittal height; According to the area division, a diopter mapping relationship between the retina and the first surface (11) is established, and design parameters are obtained, and according to the design parameters, a central luminosity area (21), a luminosity modulation area (22), and a luminosity compensation area (23) are formed on the first surface (11) in sequence from the optical center (111) to the edge (112); Dividing the light modulation area (22) into a plurality of first areas (221) of equal area, and dividing the light compensation area (23) into a plurality of second areas (231) of equal area; According to the basic sagittal height, combined with the refractive data of the second area (231) and the central luminosity area (21), the refractive data of the first area (221) is compensated, and then after smoothing, the design sagittal heights of the central luminosity area (21), the luminosity modulation area (22), and the luminosity compensation area (23) are respectively obtained, and a microstructured eyeglass lens is formed according to the design sagittal heights; The first area (221) and the second area (231) are adjacent to each other and cooperate with each other to intervene in the imaging quality of the retina within the pupil range.

12. The method for designing a microstructured lens based on peripheral retinal data according to claim 11, characterized in that: In the step of obtaining retinal refractive data of a human eye and dividing the distribution of the refractive data into regions, the region division includes a retinal central region (41), a first retinal measurement region (42) and a second retinal measurement region (43) arranged in sequence from the center of the retina to the edge of the retina, and the retinal central region (41), the first retinal measurement region (42) and the second retinal measurement region (43) are respectively arranged around the center of the retina.

13. The method for designing a microstructured lens based on peripheral retinal data according to claim 12, wherein: In the step of calculating the basic surface shape of the first surface (11) according to the human eye retinal refractive data, the calculation formula is: ； in, As the basic arrow height, n is the refractive index of the mother mirror (1), Z 3. Z 5 are Zernike astigmatism coefficients, P is the overall retinal refractive data, P 0 is the diopter of the central area of ​​the retina, represents the first weight coefficient, Represents the second weight coefficient.

14. The method for designing a microstructured lens based on peripheral retinal data according to claim 11, wherein: In the step of establishing a diopter mapping relationship between the retina and the first surface (11) according to the area division and obtaining design parameters, the expression of the mapping relationship is: ； in, L represents a design parameter of any one of the central luminosity area (21), the luminosity modulation area (22) and the luminosity compensation area (23), BVD is the eye distance, d is the corneal diameter, Rc is the radius of corneal curvature, Rr is the radius of curvature of the retina, is the field of view angle.

15. The method for designing a microstructured lens based on peripheral retinal data according to claim 11, wherein: The step of compensating the refractive data of the first area (221) based on the basic vector height and in combination with the refractive data of the second area (231) and the central luminosity area (21) further comprises: respectively acquiring first refractive index data of the first area (221), second refractive index data of the second area (231), and third refractive index data of the central luminosity area (21); The first refractive index data is compensated according to the basic sagittal height, the second refractive index data, and the third refractive index data to obtain a compensated sagittal height.

16. The method for designing a microstructured lens based on peripheral retinal data according to claim 15, wherein: In the step of compensating the first refractive data according to the basic sagittal height, the second refractive data and the third refractive data to obtain the compensated sagittal height: If all the second refractive data are less than the minimum threshold A, where A is in the range of 0.4≤A≤1.5, in diopters, then all the first areas are compensated for the minimum threshold A, and the compensated sagittal height is z The calculation formula for 1 is: ;and , ; in, z 0 is the base height, represents the sag of the central luminosity region (21), represents the vector height of the photometric compensation area (23); D B is the first refractive data; D D is the second refractive data; D N is the third refractive data; n is the refractive index of the mother mirror (1); x The horizontal coordinate of the sag, y The ordinate representing the sagittal height; If at least one of all the second refractive data is greater than or equal to the minimum threshold A, the compensation amount of all the first areas is D C , and the compensated arrow height z The calculation formula for 1 is: ;and , ; in, z 0 is the base height, represents the sag of the central luminosity region (21), represents the vector height of the photometric compensation area (23); D B is the first refractive data; D D is the second refractive data; D N is the third refractive data; n is the refractive index of the mother mirror (1); x The horizontal coordinate of the sag, y The ordinate representing the sagittal height; in, D C The specific calculation expression is: Where, Indicates the difference between the maximum value of the refractive index data of the diopter compensation area (23) and the refractive index data perpendicular to the angle direction; m , n and p All are compensation coefficients, and 1.25≤ m ≤2, 1.5≤ n ≤2.25,1.5≤ p ≤3; 0.8< A 1<2, 0.8< A 2<2,0< A 3≤1.

17. The method for designing a microstructured lens based on retinal peripheral refractive topography according to claim 11, wherein: In the step of obtaining the design sags of the central luminosity area (21), the luminosity modulation area (22) and the luminosity compensation area (23) respectively after smoothing, the calculation formula of the design sags is: ； Where, represents the designed sag obtained by performing Zernike polynomial fitting on the sag data of the photometric modulation area (22), Designing a fitting coefficient corresponding to the vector height for the photometric modulation area (11); It represents the designed sag obtained by performing Zernike polynomial fitting on the sag data of the central luminosity area (21) and the luminosity compensation area (23), Designing a fitting coefficient corresponding to the vector height for the luminosity compensation area (23); represents the sag of the central luminosity region (21), Indicates the vector height of the photometric compensation area (23).

Images