CN219065914U - Myopia prevention and control lens capable of providing stable myopia defocus signal - Google Patents
Myopia prevention and control lens capable of providing stable myopia defocus signal Download PDFInfo
- Publication number
- CN219065914U CN219065914U CN202320225086.2U CN202320225086U CN219065914U CN 219065914 U CN219065914 U CN 219065914U CN 202320225086 U CN202320225086 U CN 202320225086U CN 219065914 U CN219065914 U CN 219065914U
- Authority
- CN
- China
- Prior art keywords
- myopia
- defocus
- prevention
- stable
- control lens
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Eyeglasses (AREA)
Abstract
The utility model relates to the technical field of myopia lenses, and provides a myopia prevention and control lens capable of providing a stable myopia defocus signal, aiming at the problem that the existing myopia defocus lens cannot continuously form the stable defocus signal, comprising an optical corrective zone, wherein the periphery of the optical corrective zone is provided with a defocus prevention and control zone; the position of the defocus prevention and control area, which is close to the optical corrective area, is annularly provided with a stable defocus signal structure, and one side of the myopia prevention and control lens, which is close to human eyes, is also provided with a defocus amount customizing structure. In the utility model, the position of the defocus prevention and control area, which is close to the optical correction area in the center of the lens, is provided with a stable defocus signal structure, so that clear defocus signal images can be continuously and stably imaged in front of retina no matter what the human eye looks at near or far.
Description
Technical Field
The utility model relates to the technical field of myopia lenses, in particular to a myopia prevention and control lens capable of providing a stable myopia defocus signal.
Background
Along with the progress of society and science and technology, myopia becomes the first of eye diseases, and especially in teenagers, the incidence rate and the degree of myopia are increasingly serious. The regulation and control are carried out according to the defocus theory, and are currently accepted clinical means with a certain myopia prevention and control function. The defocus theory means that the growth of eyeballs of human eyes is regulated and controlled by retina signals, and the hyperopic defocus on the periphery of the retina can lead the eyeballs to grow, so that the hyperopic defocus is eliminated, the growth rate of ocular axis can be effectively slowed down, and the function of preventing and controlling myopia is achieved.
At present, the existing defocus prevention and control lenses basically belong to correction lenses for eliminating peripheral hyperopia defocus at far distance, for example, patent with publication number of CN218332191U discloses a compound defocus lens for preventing and relieving myopia, which comprises a central optical zone and an outer defocus optical zone, wherein the outer defocus optical zone can be matched with an inner optical curved surface of the inner surface of the lens, and can widen a visual area more effectively. However, the above-described scheme has the following problems when in use: when the far and near vision of the human eyes is switched and regulated, a stable defocus signal cannot be continuously formed, and the defocus control lens is one of important reasons for the fact that the prior defocus control lens has no obvious myopia deepening prevention and control effect.
Thus, there is an urgent need for a myopia prevention and control lens that can provide a stable myopia defocus signal.
Disclosure of Invention
The utility model aims to solve the problem that the existing myopia defocusing lens cannot continuously form a stable defocusing signal. The application provides a myopia prevention and control lens capable of providing stable myopia defocusing signals, and the position of an optical correction area, which is close to the center of the lens, of a defocusing prevention and control area is provided with a stable defocusing signal structure, so that clear defocusing signal images can be continuously and stably imaged in front of retina no matter what people see near or far.
The utility model is realized by the following technical scheme:
a myopia prevention and control lens capable of providing a stable myopia defocus signal comprises an optical correcting area, wherein the periphery of the optical correcting area is provided with a defocus prevention and control area; the position of the defocus prevention and control area, which is close to the optical corrective area, is annularly provided with a stable defocus signal structure, and one side of the myopia prevention and control lens, which is close to human eyes, is also provided with a defocus amount customizing structure.
Preferably, the stable defocus signal structure is a score line or linear pattern inscribed on the surface of the myopia prevention and control lens.
Preferably, the stable defocus signal structure is a plurality of scribe lines intersecting end to end around the periphery of the optical corrective region.
Preferably, the stable defocus signal structure is a plurality of annular score lines wound around the periphery of the optical corrective region.
Preferably, the stable defocus signal structure is a plurality of rectangular linear patterns uniformly and annularly arranged on the periphery of the optical corrective region.
Preferably, the optical corrective zone is located at the center of the myopia prevention and control lens, and the optical corrective zone is a circular zone with a diameter of 9-15 mm or an elliptical zone with a long axis in a horizontal state.
Preferably, the defocus prevention and control region comprises a plurality of positive power micro units.
Preferably, the refractive powers of the positive power micro units are the same or gradually increase from the center to the edge of the myopia prevention and control lens, and the refractive powers of the positive power micro units are controlled between +1.00D and +4.00D.
Preferably, the plurality of tiny positive focal power units are uniformly distributed in the near-edge area of the myopia prevention and control lens.
Preferably, the defocus amount customizing structure is a circular lens or a circular cylindrical lens belt protruding from the surface of the myopia prevention and control lens.
The technical scheme of the utility model has the following beneficial effects:
(1) The line on the surface of the lens far from the human eye is fixedly imaged in front of the retina of the human eye through the lens or the annular cylinder lens belt near the surface of the human eye, and clear images are continuously and stably imaged in front of the retina without being influenced by the far or near vision of the human eye; imaging optics, when the object is infinitely close to the lens or at the lens surface, imaging characteristics are that the object has large focal depth, can clearly image in a long distance on the visual axis, and can ensure that defocus signals stably and clearly fall in front of retina under the condition of different eye axis lengths.
(2) After the myopia prevention and control lens is worn, when the sight line looks forward or looks through a lens area with an optical correcting area, the optical correcting area based on the prescription degree can ensure that the human eyes obtain clear visual effect; meanwhile, a tiny positive focal power unit of the defocusing prevention and control area is imaged in front of the retina to form a signal for enabling the retina to grow forward, and the degree of myopia increase is slowed down.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view showing a first surface structure of a myopia prevention and control lens according to embodiment 1;
FIG. 2 is a schematic view showing a second surface structure of the myopia prevention and control lens in embodiment 1;
FIG. 3 is a schematic view showing a partial sectional side view of a myopia prevention and control lens according to embodiment 1;
FIG. 4 is a schematic view of the structure of a myopia prevention and control lens in embodiment 2;
FIG. 5 is a schematic view of the structure of a myopia prevention and control lens in embodiment 3;
fig. 6 is a schematic diagram of the structure of the myopia prevention and control lens in embodiment 4.
Icon: the system comprises a 1-optical correcting area, a 2-defocus prevention and control area, a 21-positive focal power micro unit, a 3-stable defocus signal structure and a 4-defocus amount customizing structure.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
Example 1
As shown in fig. 1 to 4, the present embodiment provides a myopia prevention and control lens capable of providing a stable myopia defocus signal, which includes an optical correction zone 1, wherein the periphery of the optical correction zone 1 is provided with a defocus prevention and control zone 2, and the defocus prevention and control zone 2 is a resin lens; the position of the defocus prevention and control area 2, which is close to the optical correction area 1, is annularly provided with a stable defocus signal structure 3, one surface of the myopia prevention and control lens, which is close to human eyes, is also provided with a defocus amount customizing structure 4, and the focal power of the defocus prevention and control lens is designed according to the degree of myopia, namely, the length of an eye axis, so that the size of a defocus signal is suitable, stable and continuous.
In this embodiment, the optical correction area 1 has a refractive correction function, and the imaging position is a macular central concave on the retina; the defocus prevention and control area 2 has larger positive focal power than the area of the optical correction area 1, so that the image of the object to be viewed is converged in front of retina to form a first defocus signal; the stable defocus signal structure 3 is positioned in a gap of the defocus prevention and control region 2 away from the positive focal power micro unit 21; the defocus amount customizing structure 4 is an optical lens positioned at a position, corresponding to a scribing line, on one surface of the lens close to the human eye, and is combined with the scribing line far away from the surface of the human eye, so that an image of the scribing line is focused at a designated position in front of retina to form a stable second defocus signal; the imaging position is adjusted through the lens, so that the reasonable defocus amount can be customized according to different myopia degrees.
In the embodiment, the whole surface of the lens substrate can be corrected for refraction correction, the diameter of the lens is about 55mm, and the optical correction area 1 is controlled in a circular area with the central diameter of 9.5mm of the myopia prevention and control lens; the defocus prevention and control area 2 is positioned in an annular area with the lens diameter of 9.5-55mm, and the defocus prevention and control area 2 comprises a plurality of positive focal power micro units 21; the refractive powers of the positive focal power micro units 21 are the same, the refractive power of the positive focal power micro units 21 is controlled to be +2.00D, and the positive focal power micro units 21 are uniformly distributed in the near-edge region of the myopia prevention and control lens; the stable defocusing signal structure 3 is a scribing line which is marked on the surface of the myopia prevention and control lens, specifically, the stable defocusing signal structure 3 is a plurality of scribing lines which are wound on the periphery of the optical correcting region 1 and are crossed into a ring from head to tail, and the midpoint of the scribing line is positioned on a ring with the diameter of 15mm in the center of the lens; the defocus amount customizing structure 4 is a circular lens protruding on the surface of the myopia prevention and control lens, and the imaging position of the reticle is adjusted to a position close to the front of the retina by adding the lens structure, so that the ghost phenomenon caused by multiple focuses is reduced, meanwhile, the definition of defocus signals is increased, and stable and continuous defocus signals can be provided.
Example 2
As shown in fig. 5, the difference between the present embodiment and embodiment 1 is that the optical correction area 1 in the center of the lens is located in a circular area with a diameter of 11mm in the center of the myopia prevention and control lens, the outer periphery of the optical correction area 1 is configured with a stable defocus signal structure 3, the stable defocus signal structure 3 is a plurality of annular scribe lines concentric with the optical correction area 1, and the scribe line pattern is 0.2mm; the defocus amount customizing structure 4 is a ring prism belt protruding on the surface of the myopia prevention and control lens, the interval of the ring prism belt is 1.8mm, the lens edge is uniformly distributed from the edge of the optical correcting area 1, the scribing line is arranged in the gap of the ring prism belt, and the ring prism belt is arranged at the position corresponding to the annular scribing line.
Example 3
As shown in fig. 6, the difference between the present embodiment and embodiment 1 is that the optical correction zone 1 in the center of the lens is located in a circular area within 13mm of the center diameter of the myopia prevention and control lens, the periphery of the optical correction zone 1 is a defocus prevention and control zone 2, the defocus prevention and control zone 2 adopts a peripheral progressive curvature structure and is located from the edge of the optical correction zone 1 to the lens diameter of 55 mm; the stable defocus signal structure 3 is a linear pattern arranged in a progressive curvature region; the defocus amount customizing structure 4 is a micro lens arranged on one surface of the lens close to the human eye, and is corresponding to the linear pattern or the position of the scribing line, and one surface far away from the human eye is imaged in front of the retina.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. A myopia prevention and control lens capable of providing a stable myopia defocus signal, which is characterized by comprising an optical correction area (1), wherein the periphery of the optical correction area (1) is provided with a defocus prevention and control area (2);
the position of the defocus prevention and control area (2) close to the optical corrective area (1) is annularly provided with a stable defocus signal structure (3), and one surface of the myopia prevention and control lens close to human eyes is further provided with a defocus amount customizing structure (4).
2. A myopia prevention and control lens according to claim 1, wherein the stable defocus signal structure (3) is a score line or a linear pattern inscribed on the surface of the myopia prevention and control lens.
3. A myopia prevention and control lens capable of providing a stable myopia defocus signal according to claim 2, wherein the stable defocus signal structure (3) is a plurality of score lines intersecting end to end around the periphery of the optical corrective zone (1) in a loop.
4. A myopia prevention and control lens capable of providing a stabilized myopia defocus signal according to claim 2, wherein the stabilized defocus signal structure (3) is a plurality of annular score lines wound around the periphery of the optical corrective zone (1).
5. A myopia prevention and control lens capable of providing a stable myopia defocus signal according to claim 2, wherein the stable defocus signal structure (3) is a plurality of rectangular linear patterns uniformly circumferentially arranged around the periphery of the optical corrective zone (1).
6. A myopia prevention and control lens according to any of claims 1-5, wherein the optical corrective zone (1) is located in the centre of the myopia prevention and control lens, and the optical corrective zone (1) is a circular zone with a diameter of 9-15 mm or an elliptical zone with a major axis in a horizontal state.
7. A myopia prevention and control lens according to claim 6, wherein the defocus prevention and control zone (2) comprises a plurality of positive power micro-cells (21).
8. A myopia prevention and control lens capable of providing a stable myopia defocus signal according to claim 7, wherein the refractive powers of the plurality of positive power micro-units (21) are the same or increasing from the center to the periphery of the myopia prevention and control lens, and the refractive power of the positive power micro-units (21) is controlled to be +1.00d to +4.00d.
9. A myopia prevention and control lens according to claim 7, wherein the plurality of positive power micro-cells (21) are evenly distributed in the near edge region of the myopia prevention and control lens.
10. A myopia prevention and control lens capable of providing a stable myopia defocus signal according to claim 1, wherein the defocus amount customizing structure (4) is a circular lens or a ring lens belt protruding from the surface of the myopia prevention and control lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320225086.2U CN219065914U (en) | 2023-02-14 | 2023-02-14 | Myopia prevention and control lens capable of providing stable myopia defocus signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320225086.2U CN219065914U (en) | 2023-02-14 | 2023-02-14 | Myopia prevention and control lens capable of providing stable myopia defocus signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219065914U true CN219065914U (en) | 2023-05-23 |
Family
ID=86371720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320225086.2U Active CN219065914U (en) | 2023-02-14 | 2023-02-14 | Myopia prevention and control lens capable of providing stable myopia defocus signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219065914U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117170117A (en) * | 2023-07-31 | 2023-12-05 | 北京大学人民医院 | Myopia prevention and control spectacle lens with fractal microstructure |
| CN117289485A (en) * | 2023-08-25 | 2023-12-26 | 北京大学人民医院 | Myopia prevention and control lens and glasses for preventing and controlling myopia |
-
2023
- 2023-02-14 CN CN202320225086.2U patent/CN219065914U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117170117A (en) * | 2023-07-31 | 2023-12-05 | 北京大学人民医院 | Myopia prevention and control spectacle lens with fractal microstructure |
| CN117289485A (en) * | 2023-08-25 | 2023-12-26 | 北京大学人民医院 | Myopia prevention and control lens and glasses for preventing and controlling myopia |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN219065914U (en) | Myopia prevention and control lens capable of providing stable myopia defocus signal | |
| CN103097940B (en) | In order to slow down the method and system of myopia progression | |
| CA2545390C (en) | Methods and apparatuses for altering relative curvature of field and positions of peripheral, off-axis focal positions | |
| JP2000075251A (en) | Contact lens for correcting presbyopia | |
| US20230296917A1 (en) | Spectacle lens design, method of manufacturing a spectacle lens and method of providing a spectacle lens for at least retarding myopia progression | |
| CN216434562U (en) | Spectacle lens and optical spectacles | |
| CN116027571B (en) | Myopia defocusing lens and myopia defocusing glasses | |
| CN218601620U (en) | Myopia out of focus lens and glasses with free curved surface structure | |
| TW202138877A (en) | Spectacle lenses with auxiliary optical elements | |
| JP3171629B2 (en) | Multifocal ophthalmic lens and manufacturing method thereof | |
| CN113406812A (en) | Myopia glasses lens for protecting vision of eye | |
| CN217739647U (en) | Discontinuous concentric column-shaped microstructure zoom lens | |
| CN117170117A (en) | Myopia prevention and control spectacle lens with fractal microstructure | |
| EP4270099A1 (en) | Spectacle lens | |
| JPH03244450A (en) | Two-focus artificial lens | |
| US20220179240A1 (en) | Contact lens | |
| CN215986774U (en) | Double-sided composite multi-point out-of-focus spectacle lens | |
| CN216434569U (en) | Spectacle lens and optical spectacles | |
| CN219245878U (en) | Fog and sand multipoint defocusing lens and glasses | |
| CN219778056U (en) | Lens with clear center imaging and blurred periphery imaging | |
| CN218630403U (en) | Out-of-focus lens and glasses | |
| CN209979951U (en) | Lens with ring focal plane for controlling myopia and relieving | |
| CN215769233U (en) | Myopia glasses lens | |
| CN219978651U (en) | Defocused lens based on discontinuous curved surface | |
| CN204331182U (en) | Contact lenses |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |