Lens for correcting vision and controlling myopia development
By designing a central optical zone, a competitive defocus zone, and a dot diffusion zone on the lens, combined with the alternating distribution of myopic and hyperopic defocus zones, the problem of existing lenses being unable to effectively control myopia progression has been solved, achieving both vision correction and myopia control, while reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2026-03-27
AI Technical Summary
While existing lenses can correct vision, they cannot effectively control the progression of myopia, and personalized customization is difficult.
Design a lens comprising a central optical zone, a competitive defocus zone, and a dot diffusion zone. Through competitive defocus and retinal contrast reduction mechanisms, combined with the alternating distribution of myopic and hyperopic defocus zones, and employing a microlens or cylindrical lens structure, achieve personalized customization.
While correcting vision, it effectively controls the development of myopia, reduces the risk of eye complications, improves visual experience, and reduces production costs.
Smart Images
Figure CN224052518U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to ophthalmic and optical technology field especially relates to a lens for correcting eyesight and controlling myopia development. BACKGROUND
[0002] With the progress and development of the times, myopia has become a serious public health problem, especially in some areas, the incidence and prevalence of myopia in adolescents continue to rise. Myopia not only affects the normal quality of life of patients, but also significantly increases the risk of eye complications, such as retinal detachment, glaucoma and cataract, and even can lead to permanent visual impairment and blindness.
[0003] At present, the main means of myopia prevention and control mainly include optical intervention, drug intervention, surgical intervention and improving living habits. Among them, optical intervention is widely used because of its safety, effectiveness and easy implementation. Although the traditional single-vision lens can correct eyesight, it cannot effectively control the development of myopia. In recent years, based on the peripheral defocus theory, such as multi-zone positive optical defocus lens, high asphericity micro-lens lens, etc., the development of myopia is delayed to a certain extent. However, these lenses still have problems such as limited fitting range and difficulty in personalized customization. SUMMARY
[0004] The utility model provides a kind of lens for correcting eyesight and controlling myopia development, can control myopia development while correcting eyesight, provide more effective prevention and control means for myopia patients.
[0005] The lens for correcting eyesight and controlling myopia development provided by the application comprises a lens body, the lens body is provided with a central optical zone, a competitive defocus zone and a point diffusion zone, wherein: the central optical zone is arranged at the center position of the lens body, and is used to provide clear central vision;The competitive defocus zone is arranged on the lens body and corresponds to the position of the central optical zone, and the competitive defocus effect is realized through the competitive defocus zone;The point diffusion zone is arranged on the lens body and corresponds to the positions of the central optical zone and the competitive defocus zone.
[0006] In a possible implementation manner of the application, the central optical zone comprises a single-vision lens, so that the light can be focused on the retina of the user.
[0007] In a possible implementation manner of the application, the competitive defocus zone comprises a myopic defocus zone and a hyperopic defocus zone;The myopic defocus zone is arranged on the outer surface of the lens body, and the hyperopic defocus zone is arranged on the inner surface of the lens body.
[0008] In a possible implementation manner of the application, along the direction from the center of the central optical zone to the central optical zone, the myopic defocus zone and the hyperopic defocus zone are alternately distributed.
[0009] In a possible implementation of the present application, the myopic defocus zone and the hyperopic defocus zone have opposite powers.
[0010] In a possible implementation of the present application, the myopic defocus zone comprises microlenses or cylinders for introducing myopic defocus, and the hyperopic defocus zone comprises microlenses or cylinders for introducing hyperopic defocus.
[0011] In a possible implementation of the present application, the myopic defocus zone comprises a plurality of myopic defocus zones arranged sequentially along the diameter of the lens body from the center of the lens body to the edge of the lens body, and the myopic defocus zone comprises a plurality of myopic defocus portions arranged uniformly in the circumferential direction.
[0012] In a possible implementation of the present application, the hyperopic defocus zone comprises a plurality of hyperopic defocus zones arranged sequentially along the diameter of the lens body from the center of the lens body to the edge of the lens body, and the myopic defocus zone and the hyperopic defocus zone are arranged alternately, and the hyperopic defocus zone comprises a plurality of hyperopic defocus portions arranged uniformly in the circumferential direction.
[0013] In a possible implementation of the present application, the point diffusion zone is arranged on the inner surface or the outer surface of the lens body, and the point diffusion zone is arranged at corresponding positions of the myopic defocus portion and the hyperopic defocus portion.
[0014] In a possible implementation of the present application, the point diffusion zone comprises a plurality of light diffusion points arranged uniformly at corresponding positions of the myopic defocus portion and the hyperopic defocus portion.
[0015] The one or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
[0016] (1) The present application can effectively control the development of myopia while correcting vision by introducing two mechanisms of competitive defocus and reducing retinal contrast. Competitive defocus can balance the growth trend of the eyeball, and reducing retinal contrast can further delay the growth of the eyeball, further enhancing the myopia control effect of existing lenses; and can reduce the risk of eye complications caused by myopia.
[0017] (2) The powers of the myopic defocus zone and the hyperopic defocus zone in the present application can be customized according to the refractive error and retinal defocus state of the patient, ensuring that each patient can obtain the best myopia prevention and control effect.
[0018] (3) The point diffusion area in the application can scatter light, reduce the contrast on the retina, and reduce visual fatigue and discomfort. At the same time, the blue light, radiation, and fog prevention functional films on the surface of the lens can also improve the visual experience of the user.
[0019] (4) The lens provided in the application can achieve the defocus effect by means of a film or coating, and compared with the existing multi-point defocus design lens, the application does not need complex processing technology and expensive material cost, which is conducive to reducing the production cost and sales price of the lens. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical solutions of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.
[0021] Figure 1 It is a front surface structure schematic diagram of a lens for correcting vision and controlling the development of myopia.
[0022] Figure 2 It is a myopic defocus area structure schematic diagram.
[0023] Figure 3 It is a hyperopic defocus area structure schematic diagram.
[0024] Figure 4 It is a point diffusion area structure schematic diagram.
[0025] Figure 5 It is Figure 1 Side view.
[0026] Figure legend: 1-lens body; 2-central optical area; 3-competitive defocus area; 31-hyperopic defocus area; 311-myopic defocus band; 312-myopic defocus part; 32-myopic defocus area; 321-hyperopic defocus band; 322-hyperopic defocus part; 4-point diffusion area; 41-light diffusion point. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0028] It is to be understood that where an element such as a layer, region or substrate is described as being "on" another element, it can be directly on the other element or intervening elements can also be present. Where an element such as a layer, region or substrate is described as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. As used herein, the term "vertical", "horizontal", "upper", "lower", "left", "right", and the like are used for clarity to provide relative positional information and are not intended to denote an absolute frame of reference.
[0029] In addition, the terms "first", "second", etc. are used herein only to describe various elements, and are not used to denote relative importance or a quantity of the elements. Thus, a feature defined with "first", "second", etc. can explicitly or implicitly include at least one of the feature. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.
[0030] In the present application, unless otherwise specifically defined and limited, the "on", "under", "above" and "over" of a first feature to a second feature can be that the first feature directly contacts the second feature, or the first feature indirectly contacts the second feature through an intermediate medium. Moreover, the "on", "above" and "over" of a first feature to a second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "under", "below" and "under" of a first feature to a second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. All publications, patent applications, patents, and other references mentioned herein are incorporated by reference in their entirety for the purpose of describing and disclosing the compositions and methodologies which are described in such publications, which describe and cover materials and methodologies in connection with the description of the application herein.
[0032] The embodiments of the present application provide a lens for correcting vision and controlling myopia development, as shown in the drawings. Figure 1 As shown in the drawings, the lens for correcting vision and controlling myopia development comprises a lens body 1, the lens body 1 is provided with a central optical zone 2, a competitive defocus zone 3 and a point diffusion zone 4, wherein: the central optical zone 2 is arranged at the center position of the lens body 1, and is used to provide clear central vision; the competitive defocus zone 3 is arranged on the lens body 1 and at the position corresponding to the central optical zone 2, and the competitive defocus effect is realized through the competitive defocus zone 3; the point diffusion zone 4 is arranged on the lens body 1 and at the position corresponding to the central optical zone 2 and the competitive defocus zone 3.
[0033] In the embodiments of the present application, the center position of the lens body 1 can be provided with a central optical zone 2, which provides clear central vision for the user.
[0034] For example, the diameter of the central optical zone 2 can be 8mm, and the central optical zone 2 can adopt the principle of traditional single-vision lenses to ensure that the light can be accurately focused on the retina.
[0035] In another example, the lens body 1 can be made of optical materials with high light transmittance and low dispersion, such as polycarbonate, nylon, cellulose triacetate, polymethyl methacrylate, polyvinyl alcohol, etc. These materials have good optical and mechanical properties and can meet the use requirements of the lens.
[0036] In another example, the production process of the lens can include steps such as injection molding, precision machining, and coating. Among them, injection molding is used to make the basic shape of the lens body 1; precision machining is used to carve microlens or cylindrical structures on the lens; coating is used to coat the lens surface with a film with functions such as anti-blue light, anti-ultraviolet, anti-oil, anti-radiation, and anti-fog, to improve the use experience of the lens.
[0037] In the embodiments of the present application, the competitive defocus zone 3 can be arranged on the lens body 1 at a position corresponding to the central optical zone 2, for example, the competitive defocus zone 3 can be arranged on the side of the central optical zone 2; in another example, the competitive defocus zone 3 can be arranged on the inner surface or the outer surface of the lens body 1; the competitive defocus effect is realized through the competitive defocus zone 3.
[0038] In the embodiments of the present application, the point diffusion zone 4 can be arranged on the inner surface or the outer surface of the lens body 1, and the point diffusion zone 4 can be arranged in the region where the competitive defocus zone 3 is located.
[0039] In the above embodiments, due to the arrangement of the central optical zone 2, clear central vision is provided through the arrangement of the central optical zone 2; due to the arrangement of the competitive defocus zone 3, the growth trend of the eyeball can be balanced through the arrangement of the competitive defocus zone 3, achieving the purpose of controlling the development of myopia; due to the arrangement of the point diffusion zone 4, the development of myopia can be further delayed through the arrangement of the point diffusion zone 4.
[0040] In some embodiments of the present application, as shown in Figures 2-5 The competitive defocus zone 3 includes a myopic defocus zone 32 and a hyperopic defocus zone 31; the myopic defocus zone 32 is arranged on the outer surface of the lens body 1, and the hyperopic defocus zone 31 is arranged on the inner surface of the lens body 1.
[0041] For example, the competitive defocus zone 3 can be configured to include a myopic defocus zone 32 and a hyperopic defocus zone 31. The myopic defocus zone 32 can be configured on the outer surface of the lens body 1, and the hyperopic defocus zone 31 can be configured on the inner surface of the lens body 1.
[0042] The center of the central optical zone 2 and the center of the lens body 1 coincide or are close to coincide, and the myopic defocus zone 32 and the hyperopic defocus zone 31 are alternately distributed along the diameter direction of the lens body 1 and in the direction approaching the edge of the lens body 1 from the center of the central optical zone 2.
[0043] For ease of understanding, the myopic defocus zone 32 can be configured to include a plurality of myopic defocus bands 311, which are sequentially arranged along the diameter direction of the lens body 1 and in the direction approaching the edge of the lens body 1 from the center of the lens body 1. In addition, the myopic defocus band 311 can further include a plurality of myopic defocus portions 312, which are uniformly arranged in the circumferential direction.
[0044] Similarly, the hyperopic defocus zone 31 can be configured to include a plurality of hyperopic defocus bands 321, which are sequentially arranged along the diameter direction of the lens body 1 and in the direction approaching the edge of the lens body 1 from the center of the lens body 1. In addition, the hyperopic defocus band 321 can further include a plurality of hyperopic defocus portions 322, which are uniformly arranged in the circumferential direction, and the myopic defocus band 311 and the hyperopic defocus band 321 can be arranged in a cross manner.
[0045] In another example, the myopic defocus zone 32 can adopt a lenticule or cylindrical structure to introduce myopic defocus. The power of these lenticules or cylindrical structures can be customized according to the refractive error and retinal defocus state of the patient to ensure the formation of appropriate myopic defocus at the retinal periphery. The cylindrical structure can introduce defocus effect in a specific direction and is suitable for patients with specific eye positions or accommodation dysfunction.
[0046] For example, the power of the lenticule structure of the myopic defocus zone 32 can be +2.0D to +5.0D.
[0047] In another example, the hyperopic defocus zone 31 can be configured on the inner surface or the outer surface of the lens body 1, and the myopic defocus zone 32 can also be configured on the inner surface or the outer surface of the lens body 1. One of the myopic defocus zone 32 and the hyperopic defocus zone 31 can be configured on the outer surface, and the other can be configured on the inner surface. Or other required configuration methods are also available.
[0048] And, the hyperopic defocus area 31 can also adopt a lenticule or cylindrical structure, but the degree is opposite to that of the myopic defocus area 32, for introducing hyperopic defocus. By the alternate distribution of myopic defocus and hyperopic defocus, the competitive defocus effect is achieved.
[0049] For example, the degree of the hyperopic defocus area 31 can be opposite to that of the myopic defocus area 32. Taking the degree of the lenticule structure of the myopic defocus area 32 as an example, the degree of the lenticule structure of the hyperopic defocus area 31 can be-2.0D to-5.0D. And, the width of the myopic defocus area 32 and the hyperopic defocus area 31 can be 2mm, and the period of the alternate distribution can be 4mm.
[0050] Alternatively, the myopic defocus area 32, the hyperopic defocus area 31 and the point diffusion area 4 can be arranged on the lens body 1 by means of a sticker.
[0051] The sticker material can adopt an optical film with high light transmittance and low dispersion, and the optical film is engraved with a lenticule or cylindrical structure and light diffusion points. According to the refractive error, retinal defocus state, eye position and accommodation function and other parameters of the patient, a suitable sticker is selected and pasted on the lens body 1.
[0052] In this way, the sticker technology can avoid complex processing on the lens body 1, which can effectively reduce the production cost. At the same time, the sticker can be replaced and adjusted according to the needs of the patient, which provides greater flexibility and personalized customization space.
[0053] In some embodiments of the present application, as shown in Figures 2-5 The point diffusion area 4 is arranged on the inner surface or the outer surface of the lens body 1, and the point diffusion area 4 is distributed on the corresponding positions of the myopic defocus part 312 and the hyperopic defocus part 322.
[0054] For example, the point diffusion area 4 can be arranged on the inner surface or the outer surface of the lens, and the point diffusion area 4 can include a plurality of micro light diffusion points 41, and the plurality of light diffusion points 41 are uniformly distributed on the lens body 1. These light diffusion points 41 can scatter light, reduce the contrast on the retina, and further delay the development of myopia.
[0055] The myopic defocus part 312, the hyperopic defocus part 322 and the light diffusion point 41 can all be circular, and the diameter of the light diffusion point 41 is smaller than the diameter of the myopic defocus part 312 and the hyperopic defocus part 322. For example, the diameter of the light diffusion point 41 can be 0.1mm to 0.5mm, and the density can be 1000 to 5000 per square meter.
[0056] Alternatively, the myopic defocus region 32 and the hyperopic defocus region 31 can adopt different design shapes and distribution manners, for example, an elliptical shape, a ring shape, etc. The embodiments of the present application do not make specific limitation on the design shape and distribution manner of the myopic defocus region 32 and the hyperopic defocus region 31, and selection can be made according to actual conditions.
[0057] In another example, the light diffusion points 41 can adopt different shapes and distribution densities, for example, a circular point, a square point, a hexagonal point, etc. The embodiments of the present application do not make specific limitation on the shape and distribution density of the light diffusion points 41, and selection can be made according to actual conditions.
[0058] It should be noted that, in this document, the terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitation, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or equipment including the element.
[0059] Although the embodiments of the present application have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A lens for correcting vision and controlling myopia progression, characterized in that, The lens includes a lens body (1), which is provided with a central optical zone (2), a competitive defocus zone (3) and a point diffusion zone (4), wherein: The central optical zone (2) is arranged at the center of the lens body (1) to provide clear central vision. The competitive defocus zone (3) is arranged on the lens body (1) and at the corresponding position of the central optical zone (2), and the competitive defocus effect is achieved through the competitive defocus zone (3). The point diffusion zone (4) is arranged on the lens body (1) and at the corresponding position of the central optical zone (2) and the competitive defocus zone (3).
2. Lens for correcting vision and controlling myopia progression according to claim 1, characterized in that, The central optical zone (2) includes a single-vision lens to enable light to focus on the retina of the user.
3. The lens for correcting vision and controlling myopia progression according to claim 1, characterized in that, The competitive defocus zone (3) includes a myopic defocus zone (32) and a hyperopic defocus zone (31); the myopic defocus zone (32) is arranged on the outer surface of the lens body (1), and the hyperopic defocus zone (31) is arranged on the inner surface of the lens body (1).
4. The lens for correcting vision and controlling myopia progression according to claim 3, characterized in that, Along the center of the central optical zone (2) in the direction away from the central optical zone (2), the myopic defocus zone (32) and the hyperopic defocus zone (31) are alternately distributed.
5. The lens for correcting vision and controlling myopia progression according to claim 3, characterized in that, The myopic defocus zone (32) and the hyperopic defocus zone (31) have opposite degrees.
6. The lens for correcting vision and controlling myopia progression according to claim 3, characterized in that, The myopic defocus zone (32) includes a lenticule or a cylinder for introducing myopic defocus; the hyperopic defocus zone (31) includes a lenticule or a cylinder for introducing hyperopic defocus.
7. The lens for correcting vision and controlling myopia progression according to claim 3, characterized in that, The myopic defocus zone (32) includes a plurality of myopic defocus bands (311) arranged in the diameter direction of the lens body (1) and sequentially arranged from the center of the lens body (1) to the edge of the lens body (1). The myopic defocus band (311) includes a myopic defocus part (312), and a plurality of the myopic defocus parts (312) are uniformly arranged in the circumferential direction.
8. The lens for correcting vision and controlling myopia progression according to claim 7, characterized in that, The hyperopic defocus zone (31) includes a plurality of hyperopic defocus bands (321) arranged in the diameter direction of the lens body (1) and sequentially arranged from the center of the lens body (1) to the edge of the lens body (1); the myopic defocus band (311) and the hyperopic defocus band (321) are cross arranged. The hyperopic defocus band (321) includes a hyperopic defocus part (322), and a plurality of the hyperopic defocus parts (322) are uniformly arranged in the circumferential direction.
9. The lens for correcting vision and controlling myopia progression according to claim 8, characterized in that, The point diffusion zone (4) is arranged on the inner surface or the outer surface of the lens body (1), and the point diffusion zone (4) is arranged at the corresponding position of the myopic defocus part (312) and the hyperopic defocus part (322).
10. The lens for correcting vision and controlling myopia progression according to claim 9, characterized in that, The point diffusion zone (4) includes a plurality of light diffusion points (41) uniformly arranged at the corresponding position of the myopic defocus part (312) and the hyperopic defocus part (322).