CN213182237U - Personalized peripheral myopic out-of-focus spectacle lens - Google Patents
Personalized peripheral myopic out-of-focus spectacle lens Download PDFInfo
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Abstract
The utility model relates to a personalized peripheral myopic out-of-focus lens. The inner surface of the lens is an asymmetric toroid, 10 focal power compensation reference points are distributed on the lens and are positioned at the intersection point of the sight line of each visual angle direction of the myope and the lens, and the focal power compensation value of each focal power compensation reference point is 105% -120% of the difference between the refractive power of each visual angle direction of the naked eye of the myope and the emmetropic refractive power of the patient. The utility model discloses according to the peripheral farsightedness value of actual measurement myopia patient bore hole, to the difference compensation of the asymmetric focal power about from top to bottom, the outer lens near-sighted number of degrees of the central visual field is less than central visual field number of degrees. The lens is matched with parameters of the spectacle frame with prism compensation, so that the off-axis object is basically and symmetrically imaged in front of the peripheral retina. The eye protector is suitable for teenagers, and can correct vision, inhibit eyeball elongation backwards in growth period, and control myopia deepening. Accords with the principle of human engineering, and has both functionality and adaptability.
Description
Technical Field
The utility model relates to a lens of correction myopia especially relates to a myopia nature out of focus lens of correcting peripheral hyperopia nature out of focus of retina.
Background
Since the retinal physiology itself is not a standard sphere, the peripheral curvature tends to be steeper than that of the central macula part, only objects just opposite to the central visual field of the eye, i.e. on-axis and paraxial objects, are just imaged on the fovea of the macula of the eye, and off-axis objects outside the central visual field are imaged on the rear side of the peripheral retina outside the fovea of the macula, which is called peripheral hyperopic defocus, see fig. 1, which is a schematic diagram of imaging the peripheral hyperopic defocus with naked eyes. Namely, the naked eye itself has relative hyperopic defocus rpre (relative temporal passive error) around the retina. For myopic eyes where distant objects are focused on the eye in front of the retina, correction is usually performed with a monofocal myopic lens. Because the single-focus myopia glasses only carry out clearest correction on central vision, after a wearer corrects partial vision of central macula lutea in a matched mode, the relative peripheral defocus can be converted into absolute peripheral defocus. Furthermore, the off-axis aberrations present in the monofocal myopic lenses themselves exacerbate this peripheral hyperopic defocus. In the nasal-temporal peripheral refractive power measurements performed with multiple open refractometers, it has been found that the peripheral hyperopia defocus is higher than that of the naked eye in most myopic people when wearing glasses. Present researches show that, especially for adolescents, peripheral hyperopic defocus induces the adaptive system of the eyeball to promote the axial growth of the posterior side of the eye, so that the axial growth of the eye is accelerated, and the myopia is further deepened. From the application of using the cornea shaping lens and the soft multi-focus contact lens for controlling myopia in recent years, under the condition of accurately correcting the central macular part of the retina, the peripheral myopic defocus is beneficial to reducing the increase of the eye axis, slowing down the myopia deepening speed and reducing the final myopia degree.
Meanwhile, recent clinical test practices show that the distribution of hyperopic defocus around the retina of the myopia of children is different among different individuals and the upper, lower, left and right paraxial teleaxis of the same individual. The temporal side is larger than the nasal side, the greater the angle the more pronounced. In the common lens for reducing peripheral hyperopic defocus, because the differential actual measurement value of peripheral defocus of human eyes is not considered, and a uniform empirical value is directly adopted, under the condition that the amount of the currently designed defocus is limited, the effect of myopic defocus in each area is reduced, and the functionality of the lens for delaying the increase of the ocular axis is reduced.
In addition, the glasses worn by the myope are made of lenses embedded into the glasses frame and are placed on the bridge of the nose. Referring to FIG. 2, a schematic diagram of a prior art lens with vertical tilt after wearing glasses by a wearer is shown; the lens has a vertical inclination angle relative to the front sight line of the eyes
. Referring to FIG. 3, a schematic diagram of a prior art lens that is tilted horizontally when worn by a wearer; the horizontal direction inclination exists relative to the vertical plane of the front sight line, and the horizontal inclination angle of the left mirror
Horizontal tilt angle of right mirror
. Compared with the state that the lens is not inclined, the inclination of the lens deflects light rays after passing through the lens, the prism effect of the lens is increased, the imaging of a near-axis object in a central view field is deviated, the backward moving distance of an off-axis object outside the central view field, which is imaged on peripheral retina except for a central fovea of macula lutea, is respectively asymmetric up and down, left and right, the prism effect, focal power and astigmatism which are actually sensed by human eyes are changed, and the lens is easy to cause adverse effects on the eyes besides discomfort to a lens wearer. This discomfort will affect the wearer's use of peripheral myopic out-of-focus spectaclesAnd thus ultimately the lens usage. The inclination of the lens caused by wearing the glasses also causes the near-sighted defocus compensation value actually received by the human eyes to deviate from the original design value, so that the near-sighted defocus effect is reduced.
Chinese patent CN101317120B provides a lens designed for correcting retinal peripheral hyperopic defocus, which provides two optical correction zones in a rotationally symmetric manner, respectively correcting myopia or hyperopia associated with the foveal zone and peripheral zone of the eye; chinese patent application CN101663609B considers the amplitude of the wearer's eye and head movements and determines a central correction area of the lens associated with the foveal area of the eye and a peripheral correction area of the lens associated with the peripheral area of the retina; the Chinese patent of invention CN104090381A provides a pair of lenses with different correction degrees on the nasal side and the temporal side, and the correction degree on the nasal side is greater than that on the temporal side. The prior art solutions do not mention targeted design based on actual measurements of the ocular retinal periphery hyperopic defocus, nor the effect of lens tilt after the wearer has assembled the glasses with the lenses inserted into the frame.
Disclosure of Invention
The utility model provides a to the not enough of prior art existence, provide one kind and be applicable to teenagers and wear, can correct eyesight, can restrain growth phase eyeball again and stretch backward, the individualized peripheral myopia nature out of focus lens of control myopia deepening.
The technical scheme of realizing the utility model purpose provides a personalized peripheral myopic out-of-focus lens, the lens internal surface is asymmetric toroid, distributes 10 focal power compensation reference points on the lens, and they are located the nodical department of sight and the lens of each visual angle direction of myopic patient, and the focal power compensation value of each focal power compensation reference point is 105% ~ 120% of the difference between the refractive power of each visual angle direction of corresponding myopic patient bore hole and patient's emmetropia refractive power respectively; the visual angle directions comprise 10-degree, 20-degree and 30-degree visual angles on the nasal side, 10-degree, 20-degree and 30-degree visual angles on the temporal side, 10-degree and 20-degree visual angles on the upper side and 10-degree and 20-degree visual angles on the lower side.
The utility model discloses a personalized peripheral myopic out-of-focus spectacle lens, the focal power compensation reference point corresponding to near 10 degrees inclines 1 mm inwards towards the nasal side; the power compensation reference point for near 20 degrees is 2 mm inward toward the nasal side.
The lens is provided with an additional prism, the rise difference in the vertical direction is 3-5.5 mm, and the rise difference in the horizontal direction is 2.2-4.5 mm.
The outer surface of the lens is spherical.
In order to accurately compensate the defect that the peripheral hyperopic defocusing generated by wearing ordinary myopia glasses by children leads to myopia deepening, and make up the defect that the lens after wearing glasses assembled by lens embedding glasses frames is inclined, and the imaging is asymmetric about the backward movement distance behind the peripheral retina, the utility model provides a peripheral myopic defocusing lens which is designed by matching the inclination angle of the glasses frames, the lens distance and the peripheral hyperopic defocusing measured value of the myopia retina, the myopic degree of the lenses outside the central visual field is lower than the central visual field degree, and the focal power differentiation compensation which is asymmetric about the upper part and the lower part is designed according to the peripheral hyperopic defocusing measured value actually measured by the myopia; the lens is provided with prism compensation, so that an off-axis object is basically and symmetrically imaged in front of the peripheral retina, the stimulation of the elongation of the eye axis is reduced, and the function of controlling the myopia deepening is achieved. Referring to fig. 4, an effect schematic diagram of the personalized peripheral myopic defocus imaging principle provided by the present invention is shown; after a myope wears the myopic defocus lens 5, light rays 2 emitted by a central visual field object of an object 6 in a visual field are imaged on a central fovea 1 of macula lutea of retina, and light rays 3 and light rays 4 emitted by off-axis objects are imaged in front of peripheral retina, so that the myopic defocus is changed into the myopic defocus.
Compared with the prior art, the utility model provides a pair of peripheral myopia nature out of focus lens of individualized design's beneficial effect does:
1. the focal power in the upper, lower, left and right directions on the periphery of the lens is compensated aiming at the actual measured value, the central area of the lens generates the clear correction to the central vision of the eyes, the peripheral area of the lens generates the myopic defocusing correction to the peripheral vision of the eyes, the clear photopic vision of the central part and the myopic defocusing of the peripheral part are realized, the clear vision use of teenagers in heavy academic industry is ensured, and the function of delaying myopic deepening of the lens is also considered.
2. Compensation values at the focal power compensation reference points of the upper, lower, left and right sides of the periphery of the lens compensate actual measurement values of far-sighted eyes relative to peripheral far-sighted defocus (RPRE values) according to an open type lensometer, so that a more accurate near-sighted defocus compensation function at each position can be realized, under the condition that the near-sighted defocus lens considers that astigmatism factors are small in near-sighted defocus margin, the accurate compensation value distribution can assuredly better ensure the near-sighted defocus function in each direction, and sufficient correction compensation amount is provided in practical application.
3. The increase of the defocus amount due to the astigmatism of the lens is an important reason for influencing the wearing comfort of the myopic defocused lens. The utility model provides a compensation value that lens set for is 105% ~ 120% of peripheral hyperopia out of focus measuring value, fully considered under the design and the processing condition of present continuous surface myopia out of focus lens, the increase of synchronous astigmatism that the compensation value increase brought probably causes the lens to wear the increase of uncomfortable ratio, the proportion of a suitable compensation value and measuring value of choosing. Meanwhile, the functions of myopic defocus around the lens and the use compliance of a wearer are considered, and the myopia deepening prevention and control effect of the lens can be better exerted.
4. The peripheral myopic defocus compensation value designed by the lens is 105% -120% of the peripheral hyperopic defocus value of a myopic patient, the fluctuation of the compensation value is to realize that the peripheral myopic defocus compensation value of the lens keeps basically uniform acceleration change from the center of yellow spots to the paraxial and the paraxial axes, and the measurement data rule of the traditional open type lensmeter on the peripheral vision of the myopic naked eye is met, and the requirement of the human eyes on the wearing comfort of the lens is met.
5. The lens considers the difference of the defocusing amount around the actual visual object caused by the inner rotation of the eyeball of the near-distance eye collection, the reference point of the near-vision zone at the visual angle of 10 degrees has the inner deviation of 1 mm towards the nasal side, and the reference point of the near-vision zone at the visual angle of 20 degrees has the inner deviation of 2 mm towards the nasal side, so that the lens has better wearing comfort when being used for reading and watching at a near distance.
6. The prism compensation value designed by considering the influence caused by the inclination of the lens is taken into consideration, so that a wearer can obtain the real customer perception power instead of the power measured by a common lens instrument, the aberration interference possibly existing in the frame glasses and caused by the actual wearing position of the lens frame is greatly reduced, and the implementation of the lens functionality is further effectively ensured.
Drawings
FIG. 1 is a schematic diagram of hyperopic defocus imaging in the periphery of the naked eye;
FIG. 2 is a schematic view of a prior art lens with vertical tilt after wearing glasses;
FIG. 3 is a schematic view of a prior art lens showing a horizontal tilt after a wearer wears glasses;
fig. 4 is an effect schematic diagram of the personalized peripheral myopic defocus imaging principle provided by the present invention;
fig. 5 is a schematic diagram illustrating a position of a power compensation reference point on a personalized peripheral myopic out-of-focus spectacle lens according to an embodiment of the present invention;
fig. 6 is a power distribution diagram of an initial peripheral myopic out-of-focus spectacle lens provided in embodiment 1 of the present invention;
fig. 7 is a diagram of myopic defocus distance imaged on the longitudinal meridian of the peripheral myopic defocus spectacle lens provided in embodiment 1 of the present invention;
fig. 8 is a diagram of myopic defocus distance imaged on the horizontal line of the peripheral myopic defocus spectacle lens provided in embodiment 1 of the present invention;
fig. 9 is a power distribution diagram of a peripheral myopic out-of-focus spectacle lens provided in embodiment 2 of the present invention;
fig. 10 is a near-sightedness out-of-focus distance map imaged on the longitudinal meridian of the peripheral near-sightedness out-of-focus spectacle lens provided in embodiment 2 of the present invention;
fig. 11 is a myopic defocus distance map imaged on the horizontal line of the peripheral myopic defocus spectacle lens provided in embodiment 2 of the present invention;
fig. 12 is a power distribution diagram of a peripheral myopic out-of-focus spectacle lens provided in embodiment 3 of the present invention;
fig. 13 is a near-sightedness out-of-focus distance map imaged on the longitudinal meridian of the peripheral near-sightedness out-of-focus spectacle lens provided in embodiment 3 of the present invention;
fig. 14 is a myopic defocus distance map imaged on the horizontal line of the peripheral myopic defocus spectacle lens provided in embodiment 3 of the present invention;
in the figure, 1. fovea maculae; 2. light rays emitted by objects within the central field of view; 3. light rays emitted by off-axis objects; 5. a worn myopic out-of-focus lens; 6. objects within the field of view.
Detailed Description
The technical solution of the present invention will be further described with reference to the accompanying drawings and examples.
Example 1
In this embodiment, taking a right eye with-2D myopic power of ametropia as an example, a peripheral myopic out-of-focus spectacle lens with personalized design is provided, in which the outer (front) surface is a spherical surface, the inner (back) surface is an asymmetric toroidal surface, and the specific structural design method of the inner surface is as follows:
the peripheral distance vision power focusing values at 10 degrees, 20 degrees and 30 degrees of visual angles on the nasal side, 10 degrees, 20 degrees and 30 degrees of visual angles on the temporal side, 10 degrees and 20 degrees of visual angles on the upper visual far side and 10 degrees and 20 degrees of visual angles on the lower visual near side and 20 degrees of visual angles of the patient are listed as the first column' distance vision power focusing value (D) on the naked eye through the open type lensometer, and D is a diopter unit symbol. It is shown that hyperopic defocus increases significantly with increasing visual angle and appears as temporal more than nasal, distance vision slightly more than near vision. The designed lens can correct the vision of the central visual field and the vision of the peripheral visual field, namely the myopia degree is required to be gradually reduced from the center of the lens, namely, the positive focal power compensation in upper-lower and left-right asymmetry is required, the compensation of the nasal side is less than that of the temporal side, and the compensation of the near vision area is slightly less than that of the far vision area.
Meanwhile, the upper part of the spectacle lens is inclined outwards by 9 degrees, the right part (temporal side) of the spectacle lens is inclined inwards by 7 degrees and the distance between the spectacle eyes is 12.5 millimeters according to the spectacle frame selected by the patient. The lens material was selected to have a refractive index 1.597 of the lens material to be designed, an anterior surface power of 4.0D, a radius of curvature of 149.2 mm, a lens thickness of 1.2 mm, and a posterior surface spherical power of 6.0D.
Usually, the rotation center of the myopic eye is 14.5 mm behind the cornea, the distance between the spectacle eye and the lens is 12.5 mm, and the intersection point position of the sight line of each visual angle direction of the myopic patient and the lens is calculated according to the distance 27 mm from the rotation center of the spectacle eye to the center of the lens, and is 10 focal power compensation reference points on the upper nose side, the temporal side, the distance vision and the myopia, wherein the point corresponding to the myopia 10 degrees is deviated from the inner side of the nose by 1 mm, and the point corresponding to the visual angle of 20 degrees is deviated from the inner side of the nose by 2 mm; referring to fig. 5, it is a schematic diagram of the position of the power compensation reference point on the personalized peripheral myopic out-of-focus spectacle lens provided in this embodiment; the distance from each reference point location to the center of the lens is shown in the second column of table 1, "lens reference point location (mm)". The power compensation value of each power compensation reference point is based on the naked eye far-vision defocus measured value, and considering that the near-vision lens can further deepen the far-vision defocus for the off-axis objects of the peripheral visual field and increase along with the increase of the field angle, the designed compensation value is 105% -120% of the naked eye far-vision defocus measured value, and the reference point compensation percentage number which is farther away from the center of the lens is also larger. The percentage is also selected to ensure that the power compensation value remains substantially uniformly accelerated from the central field of view to the paraxial and paraxial fields of view. The power compensation value of each power compensation reference point is shown in the third column of 'lens power compensation value (D)' in table 1, and the power compensation is realized by aspheric surface design and additional asymmetric toroidal surface correction rise to obtain the initial lens rise. Referring to fig. 6, the power profile of the initial peripheral myopic out-of-focus ophthalmic lens provided for this example.
From the measured spectacle frame parameters, an Emsley improved simple eye model is adopted to calculate the ray tracing and the off-axis beamlet imaging formula of the initial lens, so as to obtain the distance between the central view field object and the peripheral view field off-axis object from the retina, and referring to the attached figure 7, a myopic defocus distance map imaged on the longitudinal meridian line of the peripheral myopic defocus spectacle lens provided by the embodiment is obtained; referring to fig. 8, a myopic defocus distance map imaged on the horizontal line across the peripheral myopic defocus spectacle lens provided for this example; the dashed curves in figures 7 and 8 represent the imaging of light through the initial lens longitudinal meridian and the transverse horizontal line, respectively: paraxial objects of the central visual field are imaged on the retina, off-axis objects outside the central visual field are imaged in front of the peripheral retina, and the images are represented as myopic defocusing, and the effect obtained by the lens through focal power compensation is displayed. The distance of the image from the retina is listed in the fourth column "prism compensated front defocus distance (mm)" in table 1 ("prism compensated front" means the "initial lens"), and the near vision defocus of the image formed in the direction of large viewing angle is more obvious.
However, the lens is inclined, light rays pass through the lens to generate a prism effect, and images of off-axis objects in front of the retina have asymmetric phenomena of nose side, temporal side, far vision and near vision, so that prism vector height is added to the vector height of the inner surface of the initial lens to further perform prism compensation on the lens, and the vector height of the peripheral myopic out-of-focus lens with the personalized design is obtained. The solid curves in fig. 7 and 8 represent the imaging of light rays through the prism-compensated longitudinal meridian and the horizontal line of the lens, respectively, and it can be seen that the asymmetry phenomenon is improved after the prism compensation, and off-axis objects outside the central field of view are imaged in front of the peripheral retina substantially symmetrically. The distance of the image from the retina is listed in the fifth column "prism compensated defocus distance (mm)" of table 1.
TABLE 1
Inputting the vector height of the peripheral myopic out-of-focus lens of the personalized design into a free-form surface numerical control machine tool, and cutting and processing the inner surface of the selected lens blank to obtain the personalized peripheral myopic out-of-focus lens.
Example 2
This example takes the left eye with-6.5D myopic power of a ametropia patient as an example, and provides a peripheral myopic out-of-focus spectacle lens with personalized design, and the design and preparation method are shown in example 1.
The peripheral hyperopic defocus values measured by an open lensometer at 10 degrees, 20 degrees, 30 degrees on the nasal side, 10 degrees, 20 degrees, 30 degrees on the temporal side, 10 degrees and 20 degrees on the upper visual far and 10 degrees and 20 degrees on the lower visual near and 10 degrees and 20 degrees on the lower visual far of the patient are listed as the naked-eye hyperopic defocus value (D) in the first column of the table 2; the positions of 10 focal power compensation reference points on the lens, including nasal side, temporal side, far vision and near vision, are calculated according to the distance from the rotation center of the eyes to the center of the lens, wherein the distance is 27.5 mm, and the positions are shown in the second column 'the position (mm) of the reference point of the lens' in the table 2; the power compensation value of each power compensation reference point is shown in the third column of 'lens power compensation value (D)' in table 2, and the power distribution of the peripheral myopic out-of-focus spectacle lens which realizes power compensation through aspheric surface design and additional asymmetric toroidal surface correction rise is shown in fig. 9. The upper part of the spectacle lens inclines outwards by 9 degrees, the left half part (temporal side) inclines inwards by 7 degrees, the refractive index of the lens material is 1.597, the curvature radius of the front surface is 597 millimeters, and the focal power is 1.0D; back surface center power 7.5D, lens center thickness 1.2 mm.
The distance from the retina of the image formed by the object with the central field of view and the off-axis object with the peripheral field of view obtained by the ray tracing and off-axis beamlet imaging formulas is shown in fig. 10 and 11. It is also seen that the present embodiment provides lenses exhibiting myopic defocus imaging. The distance of the image from the retina without prism compensation is listed in the fourth column of table 2 "pre-prism compensated defocus distance (mm)" and the distance of the image from the retina after prism compensation is listed in the fifth column of table 2 "post-prism compensated defocus distance (mm)".
TABLE 2
Example 3
This example takes the right eye with myopic sphere power of-4D and astigmatic-2D axial 20 degree of ametropia patient as an example. A peripheral myopic out-of-focus spectacle lens of personalized design is provided, the design and preparation method of which is described in example 1.
The peripheral hyperopic defocus values measured by an open lensometer at 10 degrees, 20 degrees, 30 degrees on the nasal side, 10 degrees, 20 degrees, 30 degrees on the temporal side, 10 degrees and 20 degrees on the upper visual far and 10 degrees and 20 degrees on the lower visual near and 10 degrees and 20 degrees on the lower visual far of the patient are listed as the "hyperopic naked eye defocus value (D)" in the first column of Table 3; the positions of 10 focal power compensation reference points on the lens, including nasal side, temporal side, far vision and near vision, are calculated according to the distance between the rotation center of the eyes and the center of the lens, and are shown in the second column 'the position (mm) of the reference point of the lens' in the table 3; the power compensation values for each power compensation reference point are shown in the third column of table 3, "lens power compensation value (D)". The front surface of the lens is a spherical surface with diopter of 2.5D, the power compensation is realized by adding an asymmetric toroidal correction rise on a spherical surface of the rear surface with the spherical power of 6.5D and the cylindrical power of 2D in the optical axis direction of 20 degrees, and the power distribution of the peripheral myopic out-of-focus lens for realizing the power compensation through the correction rise is shown in figure 12. The distance from the retina of the image formed by the object with the central field of view and the off-axis object with the peripheral field of view obtained by the ray tracing and off-axis beamlet imaging formulas is shown in fig. 13 and 14. It is also seen that the present embodiment provides lenses exhibiting myopic defocus imaging. The distance of the image from the retina without prism compensation is listed in the fourth column of table 3 "pre-prism compensated defocus distance (mm)" and the distance of the image from the retina after prism compensation is listed in the fifth column of table 3 "post-prism compensated defocus distance (mm)".
TABLE 3
The embodiment of the utility model provides a peripheral myopia out of focus lens, its surface is the sphere, and the internal surface is the asymmetric toroid that lens rise was corrected through peripheral focal power compensation and prism compensation, makes central visual field and paraxial visual field object image on retina macula lutea fovea, and the off-axis object far away of skew central visual field images in front of the retina, can correct eyesight, can correct peripheral hyperopia out of focus again and be myopia out of focus, and the suppression eyeball is elongated backward, controls myopia and deepens; the focal power compensation values of the lens in four directions are different, and the lens accords with the ergonomic principle that the inward-rotation defocusing amount of the eyeball is reduced when the eye is used at a short distance, so that the near vision defocusing image received by the peripheral retina is more uniform and symmetrical.
Claims (4)
1. A personalized peripheral myopic out-of-focus ophthalmic lens, characterized by: the inner surface of the lens is an asymmetric toroidal surface, 10 focal power compensation reference points are distributed on the lens and are positioned at the intersection points of the sight lines of all visual angle directions of the myope and the lens, and the focal power compensation value of each focal power compensation reference point is 105-120% of the difference between the refractive power of each visual angle direction of the naked eye of the myope and the emmetropic refractive power of the patient; the visual angle directions comprise 10-degree, 20-degree and 30-degree visual angles on the nasal side, 10-degree, 20-degree and 30-degree visual angles on the temporal side, 10-degree and 20-degree visual angles on the upper side and 10-degree and 20-degree visual angles on the lower side.
2. The personalized peripheral myopic out-of-focus ophthalmic lens of claim 1, wherein: the focal power compensation reference point corresponding to the near 10 degrees is deviated from the nasal side by 1 mm; the power compensation reference point for near 20 degrees is 2 mm inward toward the nasal side.
3. The personalized peripheral myopic out-of-focus ophthalmic lens of claim 1, wherein: the lens is provided with an additional prism, the rise difference in the vertical direction is 3-5.5 mm, and the rise difference in the horizontal direction is 2.2-4.5 mm.
4. The personalized peripheral myopic out-of-focus ophthalmic lens of claim 1, wherein: the outer surface of the lens is spherical.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112068331A (en) * | 2020-10-13 | 2020-12-11 | 江苏明世光学科技有限公司 | A kind of personalized peripheral myopia defocus spectacle lens and design and preparation method |
| CN113547673A (en) * | 2021-07-29 | 2021-10-26 | 上海康耐特光学有限公司 | Lens design method, lens and mold |
| CN113568187A (en) * | 2021-05-25 | 2021-10-29 | 苏州明世光学科技有限公司 | Double-sided composite out-of-focus spectacle lens capable of reducing side-center hyperopic out-of-focus |
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| CN114924426A (en) * | 2022-04-14 | 2022-08-19 | 北京同仁验光配镜有限责任公司 | Myopia prevention lenses and myopia prevention glasses |
| CN114994950A (en) * | 2022-07-11 | 2022-09-02 | 凯乐康医药科技有限公司 | Defocusing soft contact lens |
| CN116125679A (en) * | 2023-01-19 | 2023-05-16 | 天津松润医疗器械有限公司 | Personalized defocus parameter determining method, lens matching method and effect evaluation equipment |
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2020
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| CN112068331A (en) * | 2020-10-13 | 2020-12-11 | 江苏明世光学科技有限公司 | A kind of personalized peripheral myopia defocus spectacle lens and design and preparation method |
| CN112068331B (en) * | 2020-10-13 | 2025-05-13 | 江苏明世光学科技有限公司 | A personalized peripheral myopic defocused spectacle lens and its design and preparation method |
| CN113568187A (en) * | 2021-05-25 | 2021-10-29 | 苏州明世光学科技有限公司 | Double-sided composite out-of-focus spectacle lens capable of reducing side-center hyperopic out-of-focus |
| CN113625470A (en) * | 2021-07-20 | 2021-11-09 | 温州医科大学 | Lens with multi-dimensional refractive power design |
| CN113547673A (en) * | 2021-07-29 | 2021-10-26 | 上海康耐特光学有限公司 | Lens design method, lens and mold |
| CN114924426A (en) * | 2022-04-14 | 2022-08-19 | 北京同仁验光配镜有限责任公司 | Myopia prevention lenses and myopia prevention glasses |
| CN114994950A (en) * | 2022-07-11 | 2022-09-02 | 凯乐康医药科技有限公司 | Defocusing soft contact lens |
| CN116125679A (en) * | 2023-01-19 | 2023-05-16 | 天津松润医疗器械有限公司 | Personalized defocus parameter determining method, lens matching method and effect evaluation equipment |
| CN116125679B (en) * | 2023-01-19 | 2023-10-10 | 天津松润医疗器械有限公司 | A personalized defocus parameter determination method, lens fitting method and effect evaluation equipment |
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