Myopia prevention and control lens
By incorporating multiple scattering optical devices and a refractive power ring lens on the myopia control lens, the problems of insufficient universality and visual fatigue of myopia control lenses are solved, achieving better myopia control effect and wearing comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 南通诺瞳奕目医疗科技有限公司
- Filing Date
- 2025-06-23
- Publication Date
- 2026-04-21
AI Technical Summary
Existing myopia control lenses lack universality, and defocused lens combinations can easily cause visual fatigue due to discontinuous imaging.
A myopia control lens is designed, comprising multiple first optical zones with scattering function and multiple second optical zones with refractive power. The first and second optical zones are respectively set on the convex and concave surfaces of the lens. Optical devices are arranged in a random polar coordinate arrangement and a circular array, combined with photolithography technology, to form a continuous defocus signal stimulation.
It improves the universality of myopia control lenses, relieves visual fatigue, and enhances the wearer's comfort and control effect.
Smart Images
Figure CN224152784U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of optical lens technology, specifically to a myopia control lens. Background Technology
[0002] Myopia control lenses utilize special optical designs to alter the optical signals of peripheral light, thereby influencing retinal growth signals and slowing down axial elongation. Among related technologies, myopia control lenses are primarily developed based on DOT, DIMS, and DISC technologies. DOT lenses are developed based on the theory of retinal contrast signals, meaning that low-contrast optical signals easily inhibit axial elongation. DISC is a soft corneal contact technology, commonly used in contact lens products. DIMS is a myopia control lens based on peripheral defocus theory. Both DIMS and DISC lenses rely on defocus control, that is, inhibiting axial elongation by projecting optical signals that are not on the retinal surface.
[0003] However, due to the differences in the distribution characteristics of visual function cells in the fundus of different groups, most myopia control lenses in the existing technology can only generate a specific optical signal. Different groups have different sensitivities to various types of optical signal stimulation, so the universality of myopia control lenses is insufficient. In addition, in the existing technology, the defocus control of DISC lenses is mostly achieved by combining multiple smaller defocus microlenses into an array structure. The imaging of the defocus lenses in the array is not continuous, which can easily cause visual fatigue for the wearer.
[0004] Based on this, this application proposes a myopia control lens in order to solve at least one of the aforementioned problems. Utility Model Content
[0005] In view of the shortcomings of the existing technology, this utility model provides a myopia control lens, which solves the problem of insufficient universality of myopia control lenses and the problem of visual fatigue caused by the discontinuous imaging of defocus lens combination lenses.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A myopia control lens includes a lens body and also includes:
[0008] The first optical region is composed of multiple optical devices with scattering functions;
[0009] The second optical zone is composed of multiple ring mirrors with refractive power;
[0010] Both the first and second optical zones are located on the lens body.
[0011] In a preferred embodiment: the lens body includes opposing convex and concave surfaces, and the first optical region and the second optical region are respectively independently disposed on the convex and concave surfaces of the lens body.
[0012] In a further preferred embodiment, a central optical region is also included, which is located at the center of the lens body, and the first and second optical regions are both located on the outer periphery of the central optical region.
[0013] In one embodiment, the optical devices in the first optical region are arranged randomly in polar coordinates.
[0014] In one embodiment, the optical devices in the first optical region are arranged in a circular array.
[0015] In a preferred embodiment, the optical devices in the first optical region are arranged in a manner corresponding to the ring mirrors in the second optical region.
[0016] In one embodiment, the diameter of the central optical zone surrounded by the second optical zone ranges from 3 to 5 mm.
[0017] In a preferred embodiment, the diameter range of the central optical zone surrounded by the first optical zone is greater than the diameter range of the central optical zone surrounded by the second optical zone.
[0018] In a further preferred embodiment: the optical components in the first optical region and the ring mirrors in the second optical region are both processed by photolithography.
[0019] In a further preferred embodiment: the defocus range of the ring lens within the second optical zone is 6D to 12D.
[0020] This invention provides a myopia control lens. Compared with the prior art, it has the following advantages:
[0021] This application provides multiple optical signal stimuli to the eyes of myopic patients by setting up a first optical zone composed of multiple optical devices with scattering function and a second optical zone composed of multiple ring lenses with refractive power. It is suitable for myopic people who are not sensitive to single optical signals. At the same time, since the defocus ring lens can provide continuous defocus signal stimulation, it can relieve the wearer's visual fatigue and improve the myopia control effect. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a front view of a myopia control lens provided in an embodiment of this application.
[0024] Figure 2 This is a rear view of a myopia control lens provided in an embodiment of this application.
[0025] Figure 3 for Figure 1 Sectional view of plane AA.
[0026] Figure 4 for Figure 1 Enlarged view of part B in the image.
[0027] Figure 5 for Figure 3 Enlarged view of section C in the image.
[0028] Figure 6 for Figure 3 Enlarged view of part D in the image.
[0029] In the diagram: 1. Lens body; 2. First optical zone; 3. Second optical zone; 4. Central optical zone. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0031] This application provides a myopia control lens that solves the problems of insufficient universality of myopia control lenses and visual fatigue caused by the discontinuous imaging of defocus lens combination lenses.
[0032] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.
[0033] Example 1:
[0034] refer to Figures 1-6 As shown, a myopia control lens includes a lens body 1, and further includes: a first optical zone 2, which is composed of multiple optical devices with scattering function; a second optical zone 3, which is composed of multiple ring lenses with refractive power; the first optical zone 2 and the second optical zone 3 are both disposed on the lens body 1.
[0035] In this embodiment, it should be noted that, on the one hand, the first optical region 2 is composed of multiple optical devices with scattering function. Based on the current DOT theory of myopia prevention and control, even if the light originally entering the eye is scattered in all directions under the scattering effect, the contrast of the light falling on the retina is reduced, thereby inhibiting the growth of the axial length of the eye. The optical devices of the first optical region 2 can be small dot-like structures generated by photolithography, thereby achieving a higher filling rate on the lens surface and playing a better prevention and control effect.
[0036] On the other hand, the second optical zone 3 is composed of multiple ring lenses with refractive power. The ring lenses can be made of other materials with different refractive indices set on the lens body 1, or they can be engraved on the lens using photolithography. The optical device with refractive power to control myopia belongs to defocus technology. The existing defocus lenses often achieve defocus signals by arranging multiple defocus lens arrays to form an optical zone. The defocus signals between multiple defocus lenses are not continuous, which causes fatigue for the wearer when moving their eyes. However, the defocus ring lens can alleviate visual fatigue due to its continuous lens structure. The ring design of the defocus ring lens can better simulate the defocus distribution after corneal reshaping, making the defocus signal more in line with the curvature of the retina, achieving a control effect similar to orthokeratology (ortho-k) lenses, without the need to be worn in the eye like ortho-k lenses.
[0037] The embodiments of this application, through the first optical zone 2 and the second optical zone 3, can provide multiple optical signal stimuli to the eyes of myopic patients, which is suitable for myopic people who are not sensitive to a single optical signal and improves the myopia prevention and control effect.
[0038] In a preferred embodiment: the lens body 1 includes opposing convex and concave surfaces, and the first optical region 2 and the second optical region 3 are respectively independently disposed on the convex and concave surfaces of the lens body 1.
[0039] In this embodiment, it should be noted that, due to the different myopia conditions of patients, the structural dimensions of various optical devices in the first optical zone 2 and the second optical zone 3 may be different. By setting them independently on the concave and convex surfaces of the lens body 1, the processing difficulty of the lens of this application can be reduced, and adjustments can be made according to the specific myopia condition of the patient.
[0040] In a further preferred embodiment, a central optical region 4 is also included, which is disposed at the center of the lens body 1, and the first optical region 2 and the second optical region 3 are both disposed on the outer periphery of the central optical region 4.
[0041] In this embodiment, it should be noted that the central optical zone 4 corresponds to the patient's macula, meaning that no additional optical equipment is installed in this area, and only the lens body 1 provides the myopia correction effect to ensure that the wearer's main field of vision is clear.
[0042] Example 2:
[0043] A myopia control lens includes all the contents of Embodiment 1 and its preferred embodiments. In addition, the optical components of the first optical zone 2 are arranged randomly in polar coordinates.
[0044] In this embodiment, it should be noted that the polar coordinate random arrangement means forming a polar coordinate system with the center of the lens body 1 as the origin, and randomly arranging the distance and angle of the optical devices in the first optical area 2 from the origin. This can avoid overlapping by referring to the size of different optical devices, and at the same time, the distribution of the number of optical devices in the first optical area 2 can be limited according to a certain density to make the distribution more uniform. On the one hand, the random arrangement can further improve the arrangement density of the optical devices. In the prior art, most lenses using the DOT principle arrange their scattering points in a certain way, such as an orthogonal array or a ring array. The regular arrangement may cause light to concentrate or diffract in a certain direction, while the randomly arranged optical devices can avoid this phenomenon, thereby improving the overall imaging quality.
[0045] On the other hand, the random arrangement of polar coordinates can simulate the light signal in the natural environment. Generally speaking, the direction of the high contrast signal seen by the human eye often changes with the wearer's movement and the change of field of vision. The regular arrangement will present a regular scattering effect as the wearer's line of vision moves. However, the randomly arranged optical devices will not form a recognizable regular pattern in the wearer's eyes, thereby reducing visual interference to the wearer.
[0046] Example 3:
[0047] refer to Figures 1-6 As shown, a myopia control lens includes all the contents of Embodiment 1 and its preferred embodiments. In addition, the optical components of the first optical zone 2 are arranged in a circular array.
[0048] In a preferred embodiment, the optical devices in the first optical region 2 are arranged in a manner corresponding to the ring mirror in the second optical region 3.
[0049] In the above embodiments, it should be noted that the optical devices in the first optical region 2 are arranged in a circular array, which, together with the defocusing ring mirror in the second optical region 3, allows the scattering optical devices to generate uniform scattering in the defocusing ring mirror area, forming multiple optical signals. The scattered defocusing signals can fill the gaps in the defocusing ring, so that the discrete defocusing signals are transformed into a continuous composite optical region, thereby improving the coverage of the prevention and control optical signals and thus improving the prevention and control effect.
[0050] On the other hand, when the wearer's eyes move, the defocus ring lens can optimize the optical signal of the line of sight when viewing objects at the defocus ring and the gap between the defocus rings, so that the optical stimulation received by each area of the retina in all directions remains uniform, thus improving wearing comfort.
[0051] Example 4:
[0052] refer to Figures 1-6 As shown, a myopia control lens includes all the contents of Embodiments 1, 2 or 1, 3 and their preferred embodiments. In addition, the diameter of the central optical zone 4 surrounding the second optical zone 3 ranges from 3 to 5 mm.
[0053] In this embodiment, it should be noted that the central optical area 4 formed by the center of the defocus ring lens has a small diameter, which ensures that the wearer has a certain field of vision while matching the defocus ring setting similar to orthokeratology lenses, thus achieving a better control effect.
[0054] In a preferred embodiment, the diameter of the central optical region 4 surrounded by the first optical region 2 is larger than the diameter of the central optical region 4 surrounded by the second optical region 3.
[0055] In this embodiment, it should be noted that the diameter of the central optical area 4 surrounded by the scattering optics is larger than that of the central optical area 4 surrounded by the second optical area 3, so as to avoid the influence of the scattering amplified contrast signal on the wearer's central visual field.
[0056] In a further preferred embodiment: the optical devices in the first optical region 2 and the ring mirrors in the second optical region 3 are both processed by photolithography.
[0057] In this embodiment, it should be noted that photolithography can adapt to the randomized arrangement of scattering optical devices in the first optical region 2, avoiding the limitations of molds in traditional pressing, and can also more accurately realize the correspondence between the circularly arranged scattering optical devices in the first optical region 2 and the defocused environmental signal in the second optical region 3; the lens in this embodiment can be a resin lens, which is easy to process, and the stress generated in the lens after processing of the related optical structure is small, and its non-eye-friendly design makes it safer for the wearer to use.
[0058] In a further preferred embodiment: the defocus range of the ring lens within the second optical zone 3 is 6D to 12D.
[0059] In this embodiment, it should be noted that the ring lens uses a relatively high defocus amount, and with the control of the scattering optical devices in the first optical zone and the processing of photolithography technology, it can still ensure a high level of wearing comfort.
[0060] In summary, compared with existing technologies, it has the following beneficial effects:
[0061] 1. This application provides multiple optical signal stimuli to the eyes of myopic patients by setting up a first optical zone composed of multiple optical devices with scattering function and a second optical zone composed of multiple ring lenses with refractive power. It is suitable for myopic people who are not sensitive to single optical signals. At the same time, since the defocus ring lens can provide continuous defocus signal stimulation, it can relieve the wearer's visual fatigue and improve the myopia control effect.
[0062] 2. This application sets different optical device arrangements in the first optical zone. The optical devices arranged randomly in polar coordinates focus on simulating the light signal in the natural environment, avoiding specific optical signal interference caused by regular arrangement; while the arrangement adapted to the defocus ring of the second optical zone can keep the optical stimulation received by each area of the retina in each direction uniform; both can optimize the optical signal of the line of sight when viewing objects at the defocus ring and the gap between the defocus rings, improve wearing comfort, and at the same time give the wearer more options for control.
[0063] 3. This application sets the size of the central optical area surrounding the first optical area and the second optical area separately. The central optical area surrounding the defocus ring lens of the second optical area has a smaller diameter to ensure that the wearer has a certain field of vision while matching the defocus ring setting similar to orthokeratology lenses, so as to achieve a better control effect. The central optical area surrounding the scattering optical device has a larger diameter to avoid the influence of the scattering amplified contrast signal on the wearer's central field of vision.
[0064] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0065] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A myopia control ophthalmic lens, characterized in that, Including the lens body (1), it also includes: The first optical region (2) is composed of multiple optical devices with scattering functions; The second optical zone (3) is composed of multiple ring mirrors with refractive power; The first optical zone (2) and the second optical zone (3) are both disposed on the lens body (1).
2. The myopia control lens of claim 1, wherein, The lens body (1) includes opposing convex and concave surfaces, and the first optical area (2) and the second optical area (3) are respectively independently disposed on the convex and concave surfaces of the lens body (1).
3. The myopia control lens of claim 1, wherein, It also includes a central optical zone (4), which is located at the center of the lens body (1), and the first optical zone (2) and the second optical zone (3) are both located on the outer periphery of the central optical zone (4).
4. The myopia control ophthalmic lens of any one of claims 1-3, wherein, The optical devices in the first optical region (2) are arranged randomly in polar coordinates.
5. The myopia control lens as described in claim 1, characterized in that, The optical devices in the first optical area (2) are arranged in a circular array.
6. The myopia control lens of claim 5, wherein, The optical devices in the first optical region (2) are arranged in a position corresponding to the ring mirror in the second optical region (3).
7. The myopia control lens of claim 3, wherein, The diameter of the central optical zone (4) surrounded by the second optical zone (3) ranges from 3 to 5 mm.
8. The myopia control lens of claim 7, wherein, The diameter range of the central optical area (4) surrounded by the first optical area (2) is larger than the diameter range of the central optical area (4) surrounded by the second optical area (3).
9. The myopia control ophthalmic lens of any one of claims 1-3, wherein, The optical devices in the first optical region (2) and the ring mirrors in the second optical region (3) are both processed by photolithography.
10. The myopia control ophthalmic lens of any one of claims 1-3, wherein, The defocus range of the ring mirror within the second optical zone (3) is 6D to 12D.