Lens design method capable of correcting high-order aberration of human eyes and lens

Abstract

The invention belongs to the technical field of ophthalmic optics, and relates to a lens design method capable of correcting high-order aberration of human eyes and a lens. Adjusting parameters of the basic eye model to obtain a target basic eye model; optimizing the surface type of the front surface of the crystalline lens and the surface type of the front surface of the cornea in the target basic eye model to obtain a fitting eye model; a paraxial surface is placed on the front surface of the fitting eye model, the vitreous body depth of the fitting eye model is adjusted, a target fitting eye model is obtained, and the paraxial surface is removed; rotating angles of eyeballs in the target fitting eye model are changed, and target eye models at different rotating angles are obtained; and optimizing the parameters of the to-be-optimized lens to obtain the lens capable of correcting the high-order aberration of the human eyes by taking the condition that the high-order aberration values of the light passing through the to-be-optimized lens when the light is imaged on the target eye model at different rotation angles are smaller than or equal to a second preset threshold value as a target. The lens capable of correcting human eye high-order aberration provided by the scheme can effectively correct high-order aberration generated by far-axis light and light outside the optical axis view field range.

Description

Technical Field

[0001] The present invention relates to the field of ophthalmic optics technology, and in particular to a lens design method and a lens capable of correcting high-order aberrations of human eyes. Background Art

[0002] The human eye, as a visual imaging system, is a complex optical system. In terms of aberrations, in addition to defocus and astigmatism, the human eye optical system also has other irregular high-order aberrations such as spherical aberration, coma and trefoil. For ordinary people, these high-order aberrations account for about 17% to 20% of the total refraction. After correcting traditional refractive problems, the existence of these high-order aberrations is the main reason for people's overall poor visual quality, which will lead to decreased visual acuity, reduced contrast sensitivity, poor night vision, glare and other visual problems.

[0003] Research teams at home and abroad have made some progress in the correction of high-order aberrations of the human eye. Since the human pupil is in a small state in most cases, the light of the human eye in this state is mainly paraxial light. Therefore, in the prior art, when designing lenses that can correct high-order aberrations, only the high-order aberrations generated by paraxial light are considered for correction, and the correction range is small. However, the size of the human pupil will change under different lighting conditions. For example, in a dim environment, the human pupil will expand and the high-order aberrations will be more significant. This results in that when the wearer's pupil diameter exceeds the effective correction range of the corrective lens, the correction effect of the lens on high-order aberrations is significantly reduced, thereby affecting the wearer's visual quality; secondly, when the wearer's eyeball rotates, the angle at which the light enters the eye is no longer along the optical axis, and the high-order aberrations generated are not only along the optical axis field of view. The existing lenses that can correct high-order aberrations only focus on the correction effect of the high-order aberrations of the human eye optical axis field of view when designing, ignoring the influence of the high-order aberrations generated after the wearer's eyeball rotates on the imaging quality.

[0004] In summary, the existing correctable high-order aberration lenses are not designed to take into account the correction effect of high-order aberrations generated by far-axis light and light outside the optical axis field of view, resulting in poor correction effect of high-order aberrations for the wearer's pupil diameter when the wearer has a large pupil diameter or the eyeball rotates, affecting the wearer's visual quality. Summary of the invention

[0005] To this end, the technical problem to be solved by the present invention is to overcome the problem that the correctable high-order aberration lenses in the prior art do not take into account the correction effect of the higher-order aberrations generated by the far-axis light and the light outside the optical axis field of view when designed, resulting in the correctable high-order aberration lenses having poor correction effect on the higher-order aberrations when the wearer has a large pupil diameter or the eyeball rotates, thereby affecting the wearer's visual quality.

[0006] In order to solve the above technical problems, the present invention provides a lens design method capable of correcting high-order aberrations of human eyes, comprising: Acquire a basic eye model, and adjust the pupil diameter of the basic eye model to the pupil diameter for measuring naked eye wavefront aberration, and adjust the curvature radius of the front and rear surfaces of the cornea, corneal thickness, anterior chamber depth, lens thickness, vitreous depth, and axial length in the basic eye model to measured values ​​in a dark environment, to obtain a target basic eye model; Optimizing the surface shape of the front surface of the lens and the front surface of the cornea in the target basic eye model by using the ZERN optimization function until the difference between the high-order aberration value and the target wave aberration value when the light is imaged on the target basic eye model is less than a first preset threshold, thereby obtaining a fitted eye model; Place a paraxial surface on the front surface of the fitting eye model, and adjust the vitreous depth of the fitting eye model with the goal of minimizing the defocus aberration value on the retina when light is imaged on the fitting eye model, obtain a target fitting eye model and remove the paraxial surface; Changing the rotation angle of the eyeball in the target fitting eye model to obtain target eye models at different rotation angles; A lens to be optimized is obtained, and the parameters of the lens to be optimized are optimized with the goal that the high-order aberration values ​​of the light when imaging on the target eye model at different rotation angles after passing through the lens to be optimized are all less than or equal to a second preset threshold, so as to obtain a lens that can correct high-order aberrations of the human eye.

[0007] Preferably, the surface of the lens to be optimized close to the target eye model is a Zernike annular phase surface, and the surface of the lens away from the target eye model is a spherical surface; The surface shape expression of the Zernike annular phase surface is: , in, The Zernike annular phase plane The vector height at each sampling point; represents the vertex curvature of the Zernike annular phase surface; The Zernike annular phase plane The radial distance of each sampling point from the optical axis; represents the cone coefficient of the Zernike annular phase surface; represents the number of Zernike polynomials; Indicates The coefficients of the Zernike polynomials; Indicates The basic aberration functions are Zernike polynomials; represents the normalized radial coordinate of the Zernike annular phase plane; represents the angular coordinate of the Zernike annular phase plane.

[0008] Preferably, optimizing the parameters of the lens to be optimized includes: The cone coefficient of the Zernike annular phase surface is adjusted using the default wavefront optimization function, and the coefficients of the 4th to 37th Zernike polynomials in the Zernike annular phase surface are adjusted using the ZERN optimization function, so as to change the surface shape of the Zernike annular phase surface until the high-order aberration values ​​of the light when passing through the lens to be optimized and imaging on the target eye model at each rotation angle are less than or equal to the second preset threshold.

[0009] Preferably, after obtaining the lens capable of correcting high-order aberrations of the human eye, the method further comprises: The SDVR operation function is used to adjust the tangent slope and curvature change rate of the lens capable of correcting high-order aberrations of the human eye until the difference between the first-order derivative value of the anti-curvature coordinate point of the lens capable of correcting high-order aberrations of the human eye and the first-order derivative value of the rotationally symmetric coordinate point is equal to 0, thereby obtaining an optimized lens capable of correcting high-order aberrations of the human eye.

[0010] Preferably, after obtaining the lens capable of correcting high-order aberrations of the human eye, the method further comprises: The POWP operation function is used to optimize the refractive power distribution of the lens capable of correcting high-order aberrations of the human eye, until the refractive power at a preset aperture of the lens capable of correcting high-order aberrations of the human eye is less than or equal to a preset ratio of the refractive power at the center point of the lens capable of correcting high-order aberrations of the human eye, thereby obtaining an optimized lens capable of correcting high-order aberrations of the human eye.

[0011] Preferably, the surface shape of the anterior surface of the cornea in the target basic eye model is a Zernike edge sag surface, which is expressed as: , in, The first The vector height at each sampling point; It represents the vertex curvature of the anterior corneal surface; The first The radial distance of each sampling point from the optical axis; It represents the cone coefficient of the anterior surface of the cornea; It represents the number of even-order aspheric coefficients in the anterior corneal surface; Indicates the even-order asphericity of the anterior corneal surface coefficients; represents the number of Zernike fringe polynomials in the anterior corneal surface; The anterior surface of the cornea The coefficients of the Zernike marginal polynomials; The anterior surface of the cornea The basic aberration function is a Zernike edge polynomial; represents the normalized radial coordinate of the anterior corneal surface; Represents the angular coordinate of the anterior surface of the cornea.

[0012] Preferably, optimizing the surface shape of the front surface of the lens and the front surface of the cornea in the target basic eye model by using the ZERN optimization function includes: The ZERN optimization function is used to sequentially adjust the curvature radius of the anterior surface of the lens, the coefficients of the 4th to the 18th, and the 25th Zernike edge polynomials in the anterior surface of the cornea, thereby changing the surface shape of the anterior surface of the lens and the surface shape of the anterior surface of the cornea, until the difference between the high-order aberration value and the target wave aberration value when the light is imaged on the target basic eye model is less than a first preset threshold.

[0013] Preferably, the acquiring of the basic eye model comprises: Get the Liou eye model; A thin lens is placed on the front surface of the lens in the Liou eye model to obtain a basic eye model.

[0014] The present invention also provides a lens capable of correcting high-order aberrations of the human eye, wherein the lens capable of correcting high-order aberrations of the human eye is designed by the lens design method capable of correcting high-order aberrations of the human eye, and specifically comprises: The on-axis high-order aberration correction area is a circular area with the center point of the lens capable of correcting high-order aberrations of the human eye as the center, and is used to correct the high-order aberrations of the human eye in the on-axis field of view; The off-axis high-order aberration correction area is a circular ring area outside the axial high-order aberration correction area, which is used to correct the high-order aberrations generated by the rotation of the human eye; The processing control area is a circular area on the side of the off-axis high-order aberration correction area away from the axial high-order aberration correction area, and is used to control the aperture of the lens capable of correcting high-order aberrations of the human eye.

[0015] Preferably, the radius of the on-axis high-order aberration correction zone is less than or equal to 4 mm; With the center point of the lens capable of correcting high-order aberrations of the human eye as the center of the circle, the radius of the outer ring of the off-axis high-order aberration correction area is less than or equal to 25 mm; With the center point of the lens capable of correcting high-order aberrations of the human eye as the center of the circle, the radius of the outer ring of the processing control area is less than or equal to 40 mm.

[0016] The lens design method for correcting high-order aberrations of the human eye provided in the present application first adjusts the basic eye model based on the pupil diameter of the naked eye wave aberration measured and multiple eye parameters in a dark environment, so that the adjusted target basic eye model can accurately reflect the refraction of light entering the human eye and on various structures in the eye under a large pupil diameter, thereby using the target basic eye model to simulate the high-order aberrations generated under a large pupil diameter, so that the lens designed based on the target basic eye model can also effectively control the refraction of light when the pupil is large and reduce high-order aberrations; since the front surface of the cornea is the surface where light enters, The first major refractive interface of the human eye is also the source of most aberrations when the human eye is imaging. Therefore, the present application uses the ZERN function to optimize the surface shape of the anterior surface of the cornea, so that the difference between the high-order aberration value and the target wave aberration value when the light is imaged on the target basic eye model is less than the first preset threshold value, thereby making the imaging effect of the target basic eye model closer to the imaging effect of the human eye, and making the design of the lens that can correct the high-order aberration of the human eye more in line with the correction needs of the human eye; because the spherical power of the human eye is closely related to the axial length of the eye, when the axial length is too long or too short, it will produce deviation. The propagation path and focus position of the light in the eye can be changed by adjusting the vitreous depth, thereby compensating for the defocus problem caused by the axial length of the eye. Therefore, the present application places a paraxial surface on the front surface of the fitting eye model to establish a focal length reference based on the optometry spherical power, assist in correcting the defocus aberration of the fitting eye model, and adjusts the vitreous depth of the fitting eye model with the goal of minimizing the defocus aberration value on the retina when the light is imaged on the fitting eye model, so as to achieve the matching of the target fitting eye model with the human eye in terms of the spherical power of the eye, so that the target fitting eye model is more consistent with the real situation of the human eye. At the same time, in order to design lenses that can meet the correction needs of the human eye at different rotation angles, the present application constructs target eye models at different rotation angles to simulate the rotation of the human eye, and uses the target eye models at all rotation angles to jointly adjust the lens parameters to be optimized to obtain a lens that can correct high-order aberrations of the human eye. As a result, even when the wearer's pupil diameter is large or the eyeball rotates, the lens that can correct high-order aberrations of the human eye can still effectively correct the high-order aberrations generated by far-axis light and light outside the optical axis field of view, thereby improving the imaging quality and the wearer's visual clarity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings, wherein: Figure 1 A flow chart of the lens design method for correcting high-order aberrations of the human eye provided in this application; Figure 2 A schematic diagram of the structure of a lens capable of correcting high-order aberrations of the human eye provided in this application; Figure 3The optical path diagram of the lens capable of correcting high-order aberrations of the human eye provided in this application at different rotation angles of the eyeball; wherein, Figure 3 (a) is the optical path diagram of the lens that can correct the high-order aberration of the human eye when the eyeball rotates at an angle of 10°. Figure 3 (b) is the optical path diagram of the lens that can correct the high-order aberrations of the human eye when the eyeball rotates at an angle of 0°. Figure 3 (c) is the optical path diagram of the lens that can correct the high-order aberrations of the human eye when the eyeball rotates at an angle of -10°; Figure 4 A schematic diagram of parameters of the inner surface of a lens capable of correcting high-order aberrations of the human eye provided in this application; wherein: Figure 4 (a) is the sagittal cross-section of the inner surface of the lens that can correct the high-order aberrations of the human eye within the full aperture of 72mm. Figure 4 (b) is the first-order derivative curve of the sagittal height cross-section of the inner surface of the lens that can correct the high-order aberration of the human eye within the full aperture of 72mm. Figure 4 (c) is the second-order derivative change curve of the sagittal height cross-section of the inner surface of the lens that can correct the high-order aberrations of the human eye within the full aperture of 72mm; Figure 5 The average diopter distribution diagram of the inner surface of the lens with a diameter of 40 mm that can correct the high-order aberrations of the human eye provided in this application; Figure 6 The initial MTF curve diagram of the wearer's eye imaging provided by this application; Figure 7 This is an MTF curve diagram after correction using the lens capable of correcting high-order aberrations of the human eye provided by the present application when the wearer's eyeball rotates at an angle of 10°; Figure 8 The MTF curve diagram after correction using the lens capable of correcting high-order aberrations of the human eye provided by the present application when the wearer's eyeball rotation angle is 0°; Fig. 9 This is an MTF curve diagram after correction using the lens capable of correcting high-order aberrations of the human eye provided by the present application when the wearer's eyeball rotates at an angle of -10°; Explanation of the reference numerals in the specification: 1. On-axis high-order aberration correction area; 2. Off-axis high-order aberration correction area; 3. Processing control area. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0019] See also Figure 1 , Figure 1 The present invention provides a lens design method for correcting high-order aberrations of the human eye, which specifically includes: S10: Obtain a basic eye model, and adjust the pupil diameter of the basic eye model to the pupil diameter for measuring naked eye wavefront aberration, and adjust the curvature radius of the front and back surfaces of the cornea, corneal thickness, anterior chamber depth, lens thickness, vitreous depth and axial length in the basic eye model to measured values ​​in a dark environment to obtain a target basic eye model.

[0020] S20: Optimize the surface shapes of the anterior surface of the lens and the anterior surface of the cornea in the target basic eye model using the ZERN optimization function until the difference between the high-order aberration value when the light is imaged on the target basic eye model and the target wave aberration value is less than a first preset threshold, thereby obtaining a fitted eye model.

[0021] S30: placing a paraxial surface on the front surface of the fitting eye model, and adjusting the vitreous depth of the fitting eye model with the goal of minimizing the defocus aberration value on the retina when the light is imaged on the fitting eye model, to obtain a target fitting eye model and remove the paraxial surface.

[0022] S40: changing the rotation angle of the eyeball in the target fitting eye model to obtain target eye models at different rotation angles.

[0023] S50: Obtain a lens to be optimized, and optimize the parameters of the lens to be optimized with the goal that the high-order aberration values ​​of the light when imaging on the target eye model at different rotation angles after passing through the lens to be optimized are all less than or equal to a second preset threshold value, so as to obtain a lens that can correct high-order aberrations of the human eye.

[0024] In a specific example of the present application, the value range of the second preset threshold is [-0.25, 0.25], and the unit is wavelength (waves).

[0025] Furthermore, obtaining the basic eye model includes: Get the Liou eye model; A thin lens was placed on the anterior surface of the lens in the Liou eye model to obtain a basic eye model.

[0026] Since the optical and physiological structures of the Liou eye model are very similar to those of the human eye, this application selects the Liou eye model to construct a basic eye model. By setting a thin lens on the front surface of the lens of the Liou eye model, the curvature radius of the lens can be better controlled when the parameters of the basic eye model are subsequently optimized and adjusted.

[0027] In a specific example of the present application, the thickness of the thin lens is , the refractive index is the refractive index value in the Gullstrand-Le Grand eye model, and the parameters of the constructed basic eye model are shown in Table 1: Table 1

[0028] In Table 1, Grad represents the refractive index of the lens, which is a gradient refractive index, and consists of two parts, Grad A and Grad P, separated by a virtual surface. The expression of the virtual surface is: , in, Represents the distance between Grad A and Grad P along the radial direction; Represents the distance between Grad A and Grad P along the optical axis; ;Grad P .

[0029] In order to enable the target basic eye model to accurately reflect the refraction of light entering the human eye and on various structures in the eye under a large pupil diameter, the target basic eye model is used to simulate the high-order aberrations generated under a large pupil diameter, so that the lens designed based on the target basic eye model can also effectively control the refraction of light when the pupil is large and reduce high-order aberrations. Therefore, the pupil diameter of the basic eye model is adjusted to the pupil diameter for measuring the naked eye wavefront aberration in a dark environment, and the measurement value ranges of the curvature radius of the anterior and posterior surfaces of the cornea, corneal thickness, anterior chamber depth, lens thickness, vitreous depth and axial length in the basic eye model are given.

[0030] Specifically, the pupil diameter for measuring naked eye wavefront aberration in a dark environment is 4mm~8mm; the radius of curvature of the anterior surface of the cornea is approximately 7.0mm~9.0mm, and the radius of curvature of the posterior surface is approximately 6.0mm~8.0mm; the corneal thickness is 0.4mm~0.7mm; the anterior chamber depth is 2.6mm~4.5mm; the lens thickness is approximately 3.0mm~4.5mm; the vitreous depth is 15mm~20mm; and the axial length of the eye is 21mm~30mm.

[0031] In a specific example of the present application, the pupil diameter of the target basic eye model is 5.5 mm, and other parameters are shown in Table 2: Table 2 Physiological parameters of human eye Value / mm Radius of curvature of the anterior corneal surface 8.300 Corneal posterior surface curvature radius 6.160 Corneal thickness 0.461 Anterior chamber depth 3.900 Lens thickness 3.410 Vitreous depth 19.209 Axial length 26.980 Furthermore, since the front surface of the cornea is the first major refractive interface for light entering the human eye and is also the source of most aberrations when the human eye forms an image, the front surface of the cornea is set to a Zernike edge sagittal surface type in the present application. Specifically, the surface type is defined by an even-order aspheric surface and an aspheric surface represented by an additional Zernike edge coefficient, wherein the radius of curvature of the even-order aspheric surface changes continuously from the center to the edge, and is a rotationally symmetric surface type, which represents the radial coordinate in units of lens length; the expression of the surface type is: , in, The first The vector height at each sampling point; It represents the vertex curvature of the anterior corneal surface; The first The radial distance of each sampling point from the optical axis; It represents the cone coefficient of the anterior surface of the cornea; It represents the number of even-order aspheric coefficients in the anterior corneal surface; Indicates the even-order asphericity of the anterior corneal surface coefficients; represents the number of Zernike fringe polynomials in the anterior corneal surface; The anterior surface of the cornea The coefficients of the Zernike marginal polynomials; The anterior surface of the cornea The basic aberration function is a Zernike edge polynomial; represents the normalized radial coordinate of the anterior corneal surface; Represents the angular coordinate of the anterior surface of the cornea.

[0032] Furthermore, by using the ZERN function to optimize the surface shape of the front surface of the lens and the front surface of the cornea, the difference between the high-order aberration value and the target wave aberration value when the light is imaged on the target basic eye model is smaller than the first preset threshold value, so that the imaging effect of the target basic eye model is closer to the imaging effect of the human eye, and the design of the lens capable of correcting the high-order aberration of the human eye is more in line with the correction needs of the human eye; In some embodiments of the present application, optimizing the surface shape of the front surface of the lens and the front surface of the cornea in the target basic eye model using the ZERN optimization function includes: The ZERN optimization function is used to adjust the curvature radius of the anterior surface of the lens, the coefficients of the 4th to the 18th, and the 25th Zernike edge polynomials in the anterior surface of the cornea in sequence, thereby changing the surface shape of the anterior surface of the lens and the surface shape of the anterior surface of the cornea, until the difference between the high-order aberration value and the target wave aberration value when the light is imaged on the target basic eye model is less than the first preset threshold.

[0033] Specifically, when optimizing the face shape of the front surface of the lens and the face shape of the front surface of the cornea, the coefficients of the Zernike edge polynomials are adjusted in order from small to large, in order to gradually fit the aberration of the target basic eye model from low order to high order, so that the aberration value of the optimized fitting eye model during imaging is closer to the aberration value of the real human eye. At the same time, the coefficient of the 25th Zernike edge polynomial corresponds to the high-order spherical aberration of the target basic eye model. Since the high-order spherical aberration is large and difficult to fit, the coefficient of the 25th Zernike edge polynomial is also used as an optimization variable during fitting to control the high-order spherical aberration value of the fitting eye model obtained after optimization to be closer to the high-order spherical aberration value of the real human eye. Optionally, the coefficients of the Zernike edge polynomials corresponding to the same aberration category and the same order can be adjusted simultaneously during optimization. For example, A7 and A8 both correspond to the first-order coma value. The values ​​of A7 and A8 can be adjusted simultaneously using the ZERN function during optimization.

[0034] Furthermore, the first preset threshold can be set according to actual conditions. The smaller the value, the closer the aberration data of the optimized fitted eye model during imaging is to the aberration data of the real human eye during imaging, indicating that the imaging effect of the fitted eye model is more consistent with the imaging effect of the real human eye, and the designed lens can better meet the imaging requirements of the human eye. In some embodiments of the present application, the value range of the first preset threshold is [0, 0.02], and the unit is wavelength (waves). When the first preset threshold is 0, it indicates that the aberration of the fitted eye model during imaging is completely consistent with the aberration of the real human eye during imaging.

[0035] As shown in Table 3, in a specific example of the present application, after optimizing the surface shape of the anterior surface of the cornea in the target basic eye model, the aberration data of the fitted eye model when imaging and the aberration data of the real human eye when imaging obtained by actual measurement are: Table 3

[0036] It can be seen from the table that the measured RMS value of the aberration data of the real human eye during imaging is 2.820 waves (the design wavelength is 0.55 μm), and the RMS value of the aberration data of the fitted eye model during imaging is 2.820 waves, indicating that the aberration data of the fitted eye model during imaging has completely converged to the same as the aberration data of the actual human eye during imaging.

[0037] It is worth noting that the RMS value refers to the root mean square value of the high-order aberration coefficients represented by the Zernike polynomials, and the unit is waves. Since the Zernike polynomials are orthogonal and normalized function series in the unit circle domain, the coefficients of the Zernike polynomials can be directly used to describe the size of the RMS value. The specific calculation formula is: , in, Indicates The coefficients of the Zernike polynomials.

[0038] Furthermore, it is also necessary to correct the relevant parameters of the fitted eye model so that the fitted eye model matches the real human eye in terms of optometry spherical power. Since the spherical power of the human eye is closely related to the axial length of the eye, defocus aberration will occur when the axial length is too long or too short. The propagation path and focusing position of the light in the eye can be changed by adjusting the vitreous depth, thereby compensating for the defocus problem caused by the axial length of the eye. Therefore, the present application places a paraxial surface on the front surface of the fitted eye model, and the paraxial surface can be regarded as an ideal thin lens. A focal length reference based on the spherical power of the eye is established to assist in correcting the defocus aberration of the fitted eye model. With the goal of minimizing the defocus aberration value on the retina when the light is imaged on the fitted eye model, the vitreous depth of the fitted eye model is adjusted to achieve a match between the target fitted eye model and the human eye in terms of spherical power of the eye, so that the target fitted eye model is more in line with the actual situation of the human eye.

[0039] In a specific example of the present application, if the actual spherical power of a real human eye is +0.5D, the focal length of the paraxial plane is +2000mm, corresponding to the +0.5D optical power of the real human eye prescription, the vitreous depth in the fitting eye model is 19.209mm, and the vitreous depth in the target fitting eye model obtained after adjustment is 19.218mm.

[0040] As shown in Table 4, in a specific example of the present application, the aberration data of the fitted eye model when imaging before adjusting the vitreous depth, and the aberration data of the target fitted eye model when imaging after adjusting the vitreous depth are shown: Table 4

[0041] It can be seen from Table 4 that the RMS value of the aberration data when imaging the fitted eye model before vitreous depth correction is 2.024 waves, and the RMS value of the aberration data when imaging the target fitted eye model after vitreous depth correction is 2.023 waves, indicating that the aberration data when imaging the eye model before and after vitreous depth correction remains basically unchanged, and is still consistent with the aberration data when imaging the real human eye.

[0042] Furthermore, in order to design the lens to meet the correction requirements of the human eye at different rotation angles, the present application constructs target eye models at different rotation angles to simulate the rotation of the human eye. Specifically, by changing the rotation angle of the target fitting eye model in the Zemax optical design software, multiple structures of the target fitting eye model at different rotation angles can be established to obtain the target eye model at different rotation angles. For example, the eyeball rotation angle can be 0°, 10°, 20°, 40°, or -10°, -20°, -40°, and any angle between these angles.

[0043] Further, the parameters of the lens to be optimized are jointly adjusted using the target eye model at all rotation angles to obtain a lens that can correct high-order aberrations of the human eye. Optionally, the surface of the lens to be optimized can be a spherical surface, an aspherical surface, or a free-form surface. In some embodiments of the present application, the lens to be optimized selects a combination of a spherical surface and a free-form surface, and the free-form surface selects a Zernike annular phase surface, that is, the surface of the lens to be optimized close to the target eye model is a Zernike annular phase surface, and the surface of the lens to be optimized away from the target eye model is a spherical surface. Among them, the surface expression of the Zernike annular phase surface is: , in, The Zernike annular phase plane The vector height at each sampling point; represents the vertex curvature of the Zernike annular phase surface; The Zernike annular phase plane The radial distance of each sampling point from the optical axis; represents the cone coefficient of the Zernike annular phase surface; represents the number of Zernike polynomials; Indicates The coefficients of the Zernike polynomials; Indicates The basic aberration functions are Zernike polynomials; represents the normalized radial coordinate of the Zernike annular phase plane; represents the angular coordinate of the Zernike annular phase plane.

[0044] Furthermore, optimizing the parameters of the lens to be optimized includes: The cone coefficient of the Zernike annular phase surface is adjusted using the default wavefront optimization function, and the coefficients of the 4th to 37th Zernike polynomials in the Zernike annular phase surface are adjusted using the ZERN optimization function, thereby changing the surface shape of the Zernike annular phase surface until the high-order aberration values ​​when the light passes through the lens to be optimized and is imaged on the target eye model at each rotation angle are less than or equal to the second preset threshold.

[0045] Furthermore, in order to ensure the processability of the lens, the change in the sagittal height of the lens needs to be considered. Whether the change in the sagittal height of the lens is uniform depends on the continuity of the change in its surface curvature. Therefore, after obtaining a lens that can correct high-order aberrations of the human eye, the following steps are also required: The SDVR operation function is used to adjust the tangent slope and curvature change rate of the lens that can correct high-order aberrations of the human eye until the difference between the first-order derivative value of the anti-curvature coordinate point and the first-order derivative value of the rotationally symmetric coordinate point of the lens that can correct high-order aberrations of the human eye is equal to 0, thereby obtaining an optimized lens that can correct high-order aberrations of the human eye.

[0046] Furthermore, if the refractive power of the lens changes too quickly, it will affect the visual stability of the human eye when worn, thereby affecting the comfort of the wearer. Therefore, in some embodiments of the present application, after obtaining the lens capable of correcting high-order aberrations of the human eye, the following steps are further included: The POWP operation function is used to optimize the refractive power distribution of the lens capable of correcting high-order aberrations of the human eye, until the refractive power at a preset aperture of the lens capable of correcting high-order aberrations of the human eye is less than or equal to a preset ratio of the refractive power at the center point of the lens capable of correcting high-order aberrations of the human eye, thereby obtaining an optimized lens capable of correcting high-order aberrations of the human eye.

[0047] In a specific example of the present application, the refractive index of the lens to be optimized is 1.597, the Abbe number is 40, the center thickness is 2 mm, the aperture is 72 mm, the lens-eye distance is 13 mm, and the wearer is +0.5D. Since 4-bend plates are commonly used in the industry, the radius of curvature of the spherical surface of the lens to be optimized is 147.871 mm, and then the surface shape of the Zernike annular phase surface of the lens to be optimized is adjusted to obtain a lens that can correct high-order aberrations of the human eye, and the tangent slope and curvature change rate of the Zernike annular phase surface of the lens that can correct high-order aberrations of the human eye are adjusted. Finally, by controlling the refractive power at the 40mm aperture of the Zernike annular phase surface to be less than or equal to 10% of the refractive power at the center point, it is ensured that the refractive power change of the lens that can correct high-order aberrations of the human eye is controlled within a smaller range, thereby improving the wearing comfort of the wearer. Table 5 shows the parameters of the lens that can correct high-order aberrations of the human eye obtained: Table 5 parameter Outer surface of glasses Inner surface of glasses Surface type Spherical Zernike annular phase plane Curvature radius / mm 147.871 167.791 Cone coefficient / -8.000 Zernike 4 / mm / <![CDATA[-7.705×10 -2 ]]> Zernike 5 / mm / <![CDATA[-6.856×10 -4 <!-- 10 -->]]> Zernike 6 / mm / <![CDATA[-9.986×10 -2 ]]> Zernike 7 / mm / <![CDATA[-4.082×10 -3 ]]> Zernike 8 / mm / <![CDATA[4.759×10 -3 ]]> Zernike 9 / mm / <![CDATA[-9.591×10 -3 ]]> Zernike 10 / mm / <![CDATA[-9.645×10 -4 ]]> Zernike 11 / mm / <![CDATA[-3.562×10 -2 ]]> Zernike 12 / mm / <![CDATA[-4.137×10 -2 ]]> ... / ... Zernike 36 / mm / <![CDATA[-4.419×10 -4 ]]> Zernike 37 / mm / <![CDATA[-5.951×10 -4 ]]> It is worth noting that the ZERN operation function, SDVR operation function and POWP operation function used in this application are all optimization operation functions unique to the Zemax software.

[0048] The present application also provides a lens designed using the method provided in the above embodiment that can correct high-order aberrations of the human eye, such as Figure 2 As shown, it specifically includes an on-axis high-order aberration correction area 1, an off-axis high-order aberration correction area 2 and a processing control area 3.

[0049] The on-axis high-order aberration correction area 1 is a circular area with the center point of the lens capable of correcting high-order aberrations of the human eye as the center, and is used to correct the high-order aberrations of the human eye in the on-axis field of view.

[0050] The off-axis high-order aberration correction zone 2 is a circular ring area outside the axial high-order aberration correction zone 1, and is used to correct the high-order aberrations generated after the human eye rotates.

[0051] The processing control area 3 is a circular area on the side of the off-axis high-order aberration correction area 2 away from the axial high-order aberration correction area 1, and is used to control the aperture of the lens that can correct the high-order aberrations of the human eye.

[0052] Furthermore, in some embodiments of the present application, the radius of the on-axis high-order aberration correction zone 1 is less than or equal to 4 mm.

[0053] With the center point of the lens capable of correcting high-order aberrations of the human eye as the center of the circle, the radius of the outer ring of the off-axis high-order aberration correction zone 2 is less than or equal to 25 mm.

[0054] With the center point of the lens capable of correcting high-order aberrations of the human eye as the center of the circle, the radius of the outer ring of the processing control area 3 is less than or equal to 40 mm.

[0055] The correction effect of the lens capable of correcting high-order aberrations of the human eye provided by the present application on high-order aberrations is verified by a specific example below.

[0056] In this embodiment, the eyeball rotation center of the target fitting eye model is set at 14 mm behind the anterior surface of the cornea, and the eyeball rotation angle is controlled to be 0°, 10° and -10°, thereby obtaining target eye models of 0°, 10° and -10°. The target eye model is used to adjust the surface shape, tangent slope, curvature change rate and refractive power distribution of the Zernike annular phase surface of the lens to be optimized, so as to obtain a lens capable of correcting high-order aberrations of the human eye. The on-axis high-order aberration correction zone of the lens capable of correcting high-order aberrations of the human eye is a circular area with a radius of 3 mm and a midpoint of the lens as the center, the off-axis high-order aberration correction zone is a circular area with a diameter greater than 6 mm to equal to 17 mm from the center of the lens, and the processing control zone is a circular area with a diameter greater than 17 mm to equal to 72 mm from the center of the lens.

[0057] like Figure 3 The optical path diagram of the lens capable of correcting high-order aberrations of the human eye obtained in this embodiment at different rotation angles is shown, wherein: Figure 3 (a) is the optical path diagram of the lens that can correct the high-order aberrations of the human eye when the eyeball rotates at an angle of 10°. The area where the central field of view light passes through the lens is a circular area with a diameter of 6 mm from the center of the lens, that is, the on-axis high-order aberration correction area; Figure 3 (b) is the optical path diagram of the lens that can correct the high-order aberrations of the human eye when the eyeball rotates at an angle of 0°. Figure 3(c) is the optical path diagram of the lens that can correct the high-order aberration of the human eye when the eyeball rotates at an angle of -10°. Figure 3 In (a), Figure 3 (a) and Figure 3 In (c), the area where the central field light passes through the lens is expanded to 17 mm in diameter from the center of the lens, that is, the central field light at a rotation angle of ±10° covers the on-axis high-order aberration correction area and the off-axis high-order aberration correction area.

[0058] like Figure 4 FIG. 1 is a schematic diagram of parameters of the inner surface of the lens that can correct high-order aberrations of the human eye obtained in this embodiment; wherein, Figure 4 (a) is the sagittal cross-sectional view of the inner surface of the lens capable of correcting high-order aberrations of the human eye within the full aperture of 72 mm. Figure 4 (b) is the first-order derivative change curve of the sagittal height cross-section of the inner surface of the lens that can correct high-order aberrations of the human eye within the full aperture of 72mm. Figure 4 (c) is the second-order derivative curve of the sagittal height cross-section of the inner surface of the lens that can correct high-order aberrations of the human eye within the full aperture of 72mm. Figure 4 It can be seen that there are no extra inflection points in the entire sagittal interface curve, and its first-order derivative and second-order derivative change continuously, indicating that the surface curvature of the lens is continuous and the lens sagittal transitions smoothly throughout the entire aperture.

[0059] like Figure 5 This is the average refractive power distribution diagram within a 40mm diameter area on the inner surface of the lens for correcting high-order aberrations of the human eye obtained in this embodiment. It can be seen from the figure that the central refractive power of the lens is -3.55D, the refractive power at the 40mm aperture is -3.20D, and the refractive power change is 0.35D, which is 9.86% relative to the central refractive power change, meeting the requirements of lens processability and human eye wearing comfort.

[0060] Table 6 shows the Zernike polynomial values ​​of the Z7-Z18 high-order aberrations when the wearer is looking straight ahead before wearing the lens capable of correcting the high-order aberrations of the human eye of this embodiment, and the Zernike polynomial values ​​of the Z7-Z18 high-order aberrations when the wearer is looking straight ahead after wearing the lens capable of correcting the high-order aberrations of the human eye: Table 6

[0061] It can be seen that in the case of direct vision, the RMS value of the higher-order aberrations (Z7-Z18 coefficients) of the image has decreased by 41.72% compared with before wearing the lens that can correct the higher-order aberrations of the human eye. In particular, the spherical aberration (Z9), which accounts for a large proportion of the total higher-order aberrations, has decreased from -1.024 waves to -0.559 waves, a decrease of 45.41%; the absolute value of the sum of the first-order coma aberrations (Z7, Z8) has decreased from 1.273 waves to 0.592 waves, a decrease of 53.50%; the clover aberrations in the directions of 45° and 135° have decreased from 0.298 waves to 0.259 waves, a decrease of 13.09%. In addition, other aberrations such as second-order coma and four-leaf clover aberrations were already at a low level before correction. Since the peripheral vision quality needs to be taken into account during the optimization design process, the values ​​of these aberrations have increased. However, the magnitude of these aberration coefficients is still controlled within a quarter wavelength (i.e. less than 0.25 waves), which has little impact on the overall visual quality.

[0062] like Figure 6 The figure shows the initial MTF curve diagram of the wearer's human eye imaging provided by this embodiment. Figure 7 This is the MTF curve diagram after correction by using the lens capable of correcting high-order aberrations of the human eye provided by the present application when the wearer's eyeball rotates at an angle of 10°. Figure 8 This is the MTF curve diagram after correction using the lens capable of correcting high-order aberrations of the human eye provided by the present application when the wearer's eyeball rotation angle is 0°. Fig. 9 This is the MTF curve diagram after correction using the lens capable of correcting high-order aberrations of the human eye provided by the present application when the wearer's eyeball rotates at an angle of -10°.

[0063] from Figure 6~Figure 9 It can be seen that in the low-frequency and medium-frequency stages (i.e., the spatial frequency range is 0~50lp / mm), whether it is direct vision or eye movement, compared with not wearing correctable high-order aberration lenses for the human eye in direct vision, the average MTF values ​​in the meridian and sagittal directions have been significantly improved, with an increase of 13%~66%. In the high-frequency stage (i.e., the spatial frequency range is 50~100lp / mm), the average MTF values ​​in the meridian and sagittal directions have also been slightly improved after correction, with an increase of 1%~3%.

[0064] As shown in Table 7, when the wearer's eyeball rotates at an angle of 10°, 0°, and -10°, the MTF values ​​in the meridian and sagittal directions of different spatial frequencies before and after correction by lenses that can correct high-order aberrations of the human eye are as follows: Table 7

[0065] From the data in Table 7, it can be seen that compared with the direct vision of the human eye before correction, the average MTF values ​​in the meridian and sagittal directions in the low-frequency stage (spatial frequency 20lp / mm) after correction are significantly improved. Specifically, it is increased by 65.23% when the human eye is in direct vision, 51.39% when the eye is rotated 10°, and 64.93% when the eye is rotated -10°; the average MTF values ​​in the meridian and sagittal directions in the medium-frequency stage (spatial frequency 50lp / mm) after correction are also improved to varying degrees. In the direct vision case, the improvement is 64.21%, 13.10% when the human eye is rotated 10°, and 59.40% when the human eye is rotated -10°; in the high-frequency stage (spatial frequency 80 lp / mm), although the improvement is relatively small after correction, the image quality is still improved. Specifically, in the case of direct vision, the average MTF value in the meridian and sagittal directions after correction is increased by 40.71%, and when the human eye rotates -10°, the improvement is 2.90%. Therefore, whether in the low-frequency, medium-frequency or high-frequency stage, after the lens corrects the aberration, the image quality is improved to varying degrees in direct vision and in the case of eye rotation.

[0066] In order to verify the correction effect of the lens capable of correcting high-order aberrations of the human eye provided in this embodiment on high-order aberrations, this embodiment also uses the design method provided in the above embodiment to design a lens that only corrects high-order aberrations of the on-axis field of view. The Zernike polynomial values ​​of the aberrations Z4 to Z18 before and after correction using the lens are shown in Table 8: Table 8

[0067] From the data in Table 8, it can be seen that after correction by the lens, the PV value of the aberration is reduced from 9.085 waves to 2.346 waves, a decrease of 74.18%. The RMS value corresponding to the coefficients of the wavefront aberration Z4-Z18 of the human eye is reduced by 85.25%, and the RMS value corresponding to the coefficients of the higher-order aberration Z7-Z18 is reduced by 73.34%. Under the condition of a pupil of 5.5 mm, the measured Z7 (coma in the X direction), Z8 (coma in the Y direction), and Z9 (spherical aberration) are 1.098 waves, -0.175 waves, and -1.024 waves, respectively. waves, all exceeded the threshold range of normal human eye higher-order aberrations given by the test equipment. After correction by the lens, the Zernike coefficients of these three items decreased to varying degrees. The sum of the first-order coma aberration (Z7, Z8) decreased by 67.09% compared with before correction, and the spherical aberration (Z9) decreased by 95.90% compared with before correction. Other types of high-order aberrations were also corrected, such as the clover aberration (Z10, Z11) decreased by 67.02% compared with before correction; the second-order astigmatism aberration (Z12, Z13) decreased by 70.05% compared with before correction; and the four-leaf clover aberration (Z17, Z18) decreased by 99.82% compared with before correction.

[0068] Furthermore, the lens is actually processed, and the wavefront aberration data on the eye axis of the wearer after wearing the lens is measured and compared with the wavefront aberration data fitted by the wearer to verify the correction effect of the lens on high-order aberrations. Table 9 shows the high-order aberration Z7-Z18 data fitted for the wearer, the high-order aberration Z7-Z18 data of five experiments after wearing the lens, and the average value of the five experimental data: Table 9

[0069] From the data in Table 9, it can be seen that the total high-order aberration values ​​of the five experiments after wearing the lens have a significant decrease compared with the naked eye data: specifically, compared with the fitted naked eye data, the total high-order aberrations of the five experimental data decreased by 19.33%, 18.31%, 23.50%, 29.71% and 25.99%, respectively, while the average value of the total high-order aberrations of the five experiments decreased by 23.37%; for coma aberrations (Z7, Z8), which is the category with the largest value proportion among all aberrations, the coma aberrations of the five experiments wearing glasses have a significant decrease. The average value is 30.24% lower than the fitted naked eye data; similarly, for the spherical aberration (Z9), which is a larger aberration, the average value of the spherical aberration in the five experiments is 14.75% lower than the fitted naked eye data; for the clover-type aberrations (Z10, Z11), the average value of the five experiments is 35.34% lower than the fitted naked eye data; in addition, after wearing the lens, other types of aberrations also decrease to varying degrees, proving that the lens designed using the design method provided in the present application has a good positive effect on the correction of high-order aberrations.

[0070] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0071] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0072] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0073] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0074] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. A method for designing a lens capable of correcting high-order aberrations of the human eye, characterized in that: include: Acquire a basic eye model, and adjust the pupil diameter of the basic eye model to the pupil diameter for measuring naked eye wavefront aberration, and adjust the curvature radius of the front and rear surfaces of the cornea, corneal thickness, anterior chamber depth, lens thickness, vitreous depth, and axial length in the basic eye model to measured values ​​in a dark environment, to obtain a target basic eye model; Optimizing the surface shape of the front surface of the lens and the front surface of the cornea in the target basic eye model by using the ZERN optimization function until the difference between the high-order aberration value and the target wave aberration value when the light is imaged on the target basic eye model is less than a first preset threshold, thereby obtaining a fitted eye model; Place a paraxial surface on the front surface of the fitting eye model, and adjust the vitreous depth of the fitting eye model with the goal of minimizing the defocus aberration value on the retina when light is imaged on the fitting eye model, obtain a target fitting eye model and remove the paraxial surface; Changing the rotation angle of the eyeball in the target fitting eye model to obtain target eye models at different rotation angles; A lens to be optimized is obtained, and the parameters of the lens to be optimized are optimized with the goal that the high-order aberration values ​​of the light when imaging on the target eye model at different rotation angles after passing through the lens to be optimized are all less than or equal to a second preset threshold, so as to obtain a lens that can correct high-order aberrations of the human eye.

2. The method for designing a lens capable of correcting high-order aberrations of the human eye according to claim 1, characterized in that: The surface of the lens to be optimized close to the target eye model is a Zernike annular phase surface, and the surface of the lens away from the target eye model is a spherical surface; The surface shape expression of the Zernike annular phase surface is: ， in, The Zernike annular phase plane The vector height at each sampling point; represents the vertex curvature of the Zernike annular phase surface; The Zernike annular phase plane The radial distance of each sampling point from the optical axis; represents the cone coefficient of the Zernike annular phase surface; represents the number of Zernike polynomials; Indicates The coefficients of the Zernike polynomials; Indicates The basic aberration functions are Zernike polynomials; represents the normalized radial coordinate of the Zernike annular phase plane; represents the angular coordinate of the Zernike annular phase plane.

3. The method for designing a lens capable of correcting high-order aberrations of the human eye according to claim 2, characterized in that: Optimizing the parameters of the lens to be optimized includes: The cone coefficient of the Zernike annular phase surface is adjusted using the default wavefront optimization function, and the coefficients of the 4th to 37th Zernike polynomials in the Zernike annular phase surface are adjusted using the ZERN optimization function, so as to change the surface shape of the Zernike annular phase surface until the high-order aberration values ​​of the light when passing through the lens to be optimized and imaging on the target eye model at each rotation angle are less than or equal to the second preset threshold.

4. The method for designing a lens capable of correcting high-order aberrations of the human eye according to claim 1, characterized in that: After obtaining a lens that can correct high-order aberrations of the human eye, it also includes: The SDVR operation function is used to adjust the tangent slope and curvature change rate of the lens capable of correcting high-order aberrations of the human eye until the difference between the first-order derivative value of the anti-curvature coordinate point of the lens capable of correcting high-order aberrations of the human eye and the first-order derivative value of the rotationally symmetric coordinate point is equal to 0, thereby obtaining an optimized lens capable of correcting high-order aberrations of the human eye.

5. The method for designing a lens capable of correcting high-order aberrations of the human eye according to claim 1, characterized in that: After obtaining a lens that can correct high-order aberrations of the human eye, it also includes: The POWP operation function is used to optimize the refractive power distribution of the lens capable of correcting high-order aberrations of the human eye, until the refractive power at a preset aperture of the lens capable of correcting high-order aberrations of the human eye is less than or equal to a preset ratio of the refractive power at the center point of the lens capable of correcting high-order aberrations of the human eye, thereby obtaining an optimized lens capable of correcting high-order aberrations of the human eye.

6. The method for designing a lens capable of correcting high-order aberrations of the human eye according to claim 1, characterized in that: The surface shape of the anterior corneal surface in the target basic eye model is the Zernike edge sagittal surface, and its expression is: ， in, The first The vector height at each sampling point; It represents the vertex curvature of the anterior corneal surface; The first The radial distance of each sampling point from the optical axis; It represents the cone coefficient of the anterior surface of the cornea; It represents the number of even-order aspheric coefficients in the anterior corneal surface; Indicates the even-order asphericity of the anterior corneal surface coefficients; represents the number of Zernike fringe polynomials in the anterior corneal surface; The anterior surface of the cornea The coefficients of the Zernike marginal polynomials; The anterior surface of the cornea The basic aberration function is a Zernike edge polynomial; represents the normalized radial coordinate of the anterior corneal surface; Represents the angular coordinate of the anterior surface of the cornea.

7. The method for designing a lens capable of correcting high-order aberrations of the human eye according to claim 6, characterized in that: Optimizing the surface shape of the front surface of the lens and the front surface of the cornea in the target basic eye model by using the ZERN optimization function includes: The ZERN optimization function is used to sequentially adjust the curvature radius of the anterior surface of the lens, the coefficients of the 4th to the 18th, and the 25th Zernike edge polynomials in the anterior surface of the cornea, thereby changing the surface shape of the anterior surface of the lens and the surface shape of the anterior surface of the cornea, until the difference between the high-order aberration value and the target wave aberration value when the light is imaged on the target basic eye model is less than a first preset threshold.

8. The method for designing a lens capable of correcting high-order aberrations of the human eye according to claim 1, characterized in that: The obtaining of the basic eye model comprises: Get the Liou eye model; A thin lens is placed on the front surface of the lens in the Liou eye model to obtain a basic eye model.

9. A lens capable of correcting high-order aberrations of the human eye, characterized in that: The lens capable of correcting high-order aberrations of the human eye is designed by the lens design method capable of correcting high-order aberrations of the human eye according to any one of claims 1 to 8, which specifically comprises: The on-axis high-order aberration correction area is a circular area with the center point of the lens capable of correcting high-order aberrations of the human eye as the center, and is used to correct the high-order aberrations of the human eye in the on-axis field of view; The off-axis high-order aberration correction area is a circular ring area outside the axial high-order aberration correction area, which is used to correct the high-order aberrations generated by the rotation of the human eye; The processing control area is a circular area on the side of the off-axis high-order aberration correction area away from the axial high-order aberration correction area, and is used to control the aperture of the lens capable of correcting high-order aberrations of the human eye.

10. The lens capable of correcting high-order aberrations of human eyes according to claim 9, characterized in that: The radius of the on-axis high-order aberration correction zone is less than or equal to 4 mm; With the center point of the lens capable of correcting high-order aberrations of the human eye as the center of the circle, the radius of the outer ring of the off-axis high-order aberration correction area is less than or equal to 25 mm; With the center point of the lens capable of correcting high-order aberrations of the human eye as the center of the circle, the radius of the outer ring of the processing control area is less than or equal to 40 mm.

Images