A cyclofocal prism lens capable of preventing myopia from getting worse and treating pseudomyopia

Abstract

The invention relates to the technical field of adjusting myopia, and in particular to a cyclofocal prism lens with the functions of preventing myopia from worsening and treating pseudomyopia, comprising a cyclofocal lens, wherein the outer side surface of the cyclofocal lens is provided with a plurality of annular areas from the optical center outward to the periphery of the lens, and the degree of each annular area decreases step by step; a lens prism is arranged in a semicircular area located below the optical center on the inner side surface or the outer side surface of the cyclofocal lens, that is, a combination of a lens and a prism, wherein the inner surface of the lens prism is bonded to the cyclofocal lens, the outer surface of the lens prism is an outer convex surface or an inner concave surface or a plane, the side surface of the lens prism vertically extends outward to form a base top and a base, the base top is directed to the left or right, and the corresponding base is directed to the right or left, and the thickness gradually decreases from the base to the base top until it is smoothly connected with the cyclofocal lens. The invention can avoid the long-term clamping and compression of the eyeball by the extraocular muscles, control the axial elongation of the eyeball, and achieve the purpose of treating myopia.

Description

Technical Field

[0001] The present invention relates to the technical field of juvenile myopia prevention and control, and in particular to a cyclofocal prism lens with the functions of preventing myopia progression and treating pseudomyopia. Background Art

[0002] Currently, when myopic teenagers wear single-vision lenses, the image at the center of their vision is projected onto the retina. However, as the power of the single-vision lens increases from the center to the edge, its periphery is projected behind the retina, causing the eye axis to grow faster and the degree of myopia to deepen.

[0003] In the prior art, there is a single annular lens, but the annular lens can only project the image onto the retina and slow down the growth of the eye axis, but cannot improve the long-term clamping of the eyeball by the extraocular muscles, that is, this lens can only slow down the growth of myopia, and there is no way to eliminate the pressure generated by the contraction of the ciliary muscles and the cohesion of the extraocular muscles, and cannot slow down the degree of myopia, and cannot achieve the effect of treating myopia; there is also a myopia treatment lens that is a convex lens plus a prism, which uses the imaging of the convex lens to force the lens of the eye to contract in the opposite direction of myopia, thereby adjusting the lens to achieve the purpose of treating pseudomyopia, and the prism plays a role in alleviating the growth of the eye axis caused by the clamping and pressure of the extraocular muscles on the eyeball when looking at close objects, but this lens cannot see distant objects clearly, so it is not convenient to wear at any time. Summary of the invention

[0004] In view of the fact that existing lenses for preventing and treating myopia still have problems and shortcomings, the present invention provides a cyclofocal prism lens with the function of preventing myopia from worsening and treating pseudomyopia.

[0005] The scheme adopted by the present invention to solve the technical problem is: a ring-focus prism lens with the function of preventing myopia from deepening and treating pseudomyopia, comprising a ring-focus lens, which is a ring-focus concave lens or a ring-focus plano lens, and there are multiple annular areas with different degrees on the outer side of the ring-focus lens from the optical center to the periphery of the lens, and the degree of each annular area decreases step by step; a lens prism is arranged in a semicircular area below the optical center on the inner side of the ring-focus lens, and the lens prism is a combination of a convex lens and a prism or a combination of a concave lens and a prism, wherein the inner surface of the lens prism is connected to the inner surface of the ring-focus lens, the outer surface of the lens prism is an outer convex surface or an inner concave surface or a plane, and the side surface of the lens prism vertically extends outward to form a base top and a base, the base top is directed to the left or right, and the corresponding base is directed to the right or left, and the thickness gradually decreases from the base to the base top until it is smoothly connected with the ring-focus lens.

[0006] Furthermore, the lens prism is located at all positions of the semicircular area below the optical center, the upper edge of the lens prism is a straight line or an arc, and the lower edge of the lens prism coincides with the lower edge of the ring-focus lens.

[0007] Furthermore, the lens prism is located at a local position of a semicircular area below the optical center, and the lens prism is semicircular, circular, square or elliptical.

[0008] Furthermore, the luminance of the annular focus lens remains constant within 3 mm of the optical center, and gradually decreases toward the periphery beyond 3 mm from the optical center, with the amplitude of the gradual decrease being 1-100 degrees, so that the annular focus lens has more than 4 annular fields of view.

[0009] Furthermore, the ring-focus lens is a resin lens or a glass lens with a refractive index of 1.499-1.9.

[0010] Furthermore, the lens prism and the ring focus lens are an integral body or a combination.

[0011] A ring-focus prism lens with the functions of preventing myopia from worsening and treating pseudomyopia comprises a ring-focus lens, which is a ring-focus concave lens or a ring-focus plano lens. The inner side of the ring-focus lens is provided with a plurality of annular areas with different degrees from the optical center to the periphery of the lens, and the degree of each annular area decreases step by step. A lens prism is arranged in a semicircular area below the optical center on the outer side of the ring-focus lens. The lens prism is a combination of a convex lens and a prism or a combination of a concave lens and a prism, wherein the inner surface of the lens prism is connected to the inner surface of the ring-focus lens, the outer surface of the lens prism is an outer convex surface or an inner concave surface or a plane, and the side surface of the lens prism vertically extends outward to form a base top and a base, the base top is oriented to the left or right, and the corresponding base is oriented to the right or left, and the thickness gradually decreases from the base to the base top until it is smoothly connected to the ring-focus lens.

[0012] Furthermore, the lens prism is located at all positions of the semicircular area below the optical center, the upper edge of the lens prism is a straight line or an arc, and the lower edge of the lens prism coincides with the lower edge of the ring-focus lens.

[0013] Furthermore, the lens prism is located at a local position of a semicircular area below the optical center, and the lens prism is semicircular, circular, square or elliptical.

[0014] Beneficial effects of the present invention: The toric prism lens provided by the present invention integrates toric glasses with a lens prism, wherein the lens structure has a composite structural feature of three lenses, namely, multiple toric lenses (convex lenses, plano lenses or concave lenses) and a prism, in the area located in the lens prism, which can control the elongation of the eye axis, thereby controlling the aggravation of myopia and treating pseudomyopia.

[0015] Among them, the toric lens is based on the principle of optical compression. The degree of the toric lens gradually decreases from the center to the periphery. When light passes through the toric lens, not only the central area but also the surrounding area can be imaged on the retina without deviation from the retinal imaging phenomenon, thereby controlling the growth of the eye axis, preventing myopia from deepening, and ensuring the maximum visible field of view. At the same time, due to the gradual decrease in degree from the center to the periphery, the toric lens is thinner, lighter, and more comfortable to wear than the single-vision lens with the same refractive index, the same diameter, and the same degree. The lens prism is a lens composed of a prism and a lens. Through the lens prism, you can see nearby objects clearly when the ciliary muscle is relaxed and the lens contracts in the opposite direction of myopia, and achieve the purpose of physical therapy to treat myopia. At the same time, when you look at nearby objects through the prism with the base facing outward, the image of the nearby object moves toward the base, so that you can see nearby objects clearly when your eyes are relaxed and focused, so as to avoid the long-term clamping and compression of the eyeball by the extraocular muscles, which leads to the axial elongation of the eyeball and the deepening of myopia. At the same time, it reduces visual fatigue, relieves pseudomyopia, and controls the growth of axial myopia (true myopia). The cyclofocal lens and the lens prism are integrated into one, which can play a role in treating and adjusting pseudomyopia and controlling true myopia, and play a role in preventing and treating myopia for adolescents and children in their developmental period. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The structure of the embodiment 1 of the present invention is shown in FIG. Figure 1 ;

[0017] Figure 2 for Figure 1 Sectional view along AA;

[0018] Figure 3 for Figure 1 Sectional view along BB;

[0019] Figure 4 The structure of the second embodiment of the present invention is shown in FIG. Figure 2 ;

[0020] Figure 5 The structure of the second embodiment of the present invention is shown in FIG. Figure 3 ;

[0021] Figure 6 The structure of the second embodiment of the present invention is shown in FIG. Figure 4 ;

[0022] Figure 7 This is a schematic diagram of the structure of Embodiment 3 of the present invention;

[0023] Figure 8 for Figure 7 Cross-sectional view along CC;

[0024] Fig. 9 for Figure 7 Sectional view along DD;

[0025] Fig.10 This is a schematic diagram of the structure of Embodiment 4 of the present invention;

[0026] Fig.11 for Fig.10 Sectional view along EE;

[0027] Fig.12 for Fig.10 Sectional view along the middle edge FF;

[0028] In the figure: 1- annular focus lens, 2- lens prism, 3- base top, 4- base, 5- annular area. DETAILED DESCRIPTION

[0029] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0030] Embodiment 1: a kind of Figure 1-3 The cyclofocal prism lens shown in the figure can prevent myopia from getting worse and treat pseudomyopia. The cyclofocal lens is a cyclofocal concave lens or a cyclofocal plano lens. Figure 2 , Figure 3 It can be seen that a plurality of concentric annular areas 5 are distributed on the outer side of the annular lens 1. The luminance within 3 mm, 6 mm or 30 mm of the optical center remains unchanged, and the luminance of the annular area 5 outside the optical center by 3 mm, 6 mm or 30 mm gradually decreases toward the periphery. The magnitude of the gradual decrease depends on the design purpose, for example, a change value of 1-100 degrees, so that the annular lens 1 has a plurality of viewing fields with different luminances. The annular lens is made of a resin lens or a glass lens with a refractive index of 1.499-1.9 or other materials with a higher refractive index.

[0031] In this embodiment, the 6 fields of view of the toric lens 1 are taken as an example. The 6 fields of view gradually offset the prism effect and aberration caused by the increase in thickness, slowing down the growth of the eye axis. Light passing through the central area of ​​the toric lens 1 and the surrounding area can be imaged on the retina without deviation from the retinal imaging phenomenon. In this way, the elongation of the eye axis is controlled and the deepening of myopia is alleviated.

[0032] from Figure 1-3 It can also be seen that the inner side of the ring-focus lens 1 is provided with a lens prism 2, the lens prism is circular, and the upper end of the lens prism 2 is located on the inner side of the ring-focus lens 1, which is located 2-4mm below the optical center. The lens prism 2 and the ring-focus lens 1 (ring-focus concave lens or ring-focus flat lens) are integral or combined, preferably integrally formed. The ring-focus lens and the lens prism are formed by setting a combined mold of the ring-focus lens and the lens prism, and then the ring-focus prism lens product is formed through subsequent processing, detection and optimization processing. Figure 1 It can be seen that the lens prism 2 is located below the optical center of the cyclofocus lens 1, the inner surface of the lens prism 2 is in close contact with the cyclofocus lens 1, the outer surface of the lens prism is an outer convex surface or an inner concave surface or a plane, the outer convex surface is used for mild myopia, and the inner concave surface is used for severe myopia, the side surface of the lens prism extends vertically outward to form a base top and a base, the base top is thin, the base is thick, and the thickness gradually decreases from the base to the base top until it is smoothly connected with the cyclofocus lens, the base top 3 is in the left or right direction, and the corresponding base 4 is in the right or left direction. In use, it is selected according to the eye condition of the myopic person. , the base of myopes with esotropia faces outward and the base faces inward, while the base of myopes with exotropia faces outward and the base faces inward, which can correct and treat strabismus; in the lens structure, the three-lens composite structural features of the cyclofocus lens 1, convex lens and prism appear in the area located in the lens prism. The object will move from the base 4 to the base 3 through the lens prism 2, and the light scattered by the nearby object will be changed into relatively parallel light, thereby reducing the clamping and compression of the eyeball by the extraocular muscles, reducing the convergence amplitude when looking at near objects, and achieving a state where near vision is equal to far vision. After the three lenses of the cyclofocus lens 1 (cyclofocus concave lens or cyclofocus plano lens), lens (convex lens, plano lens or concave lens) and prism are composited, it can not only treat and adjust pseudomyopia, but also control true myopia.

[0033] Embodiment 2: This embodiment is a cyclofocal prism lens with the function of preventing myopia progression and treating pseudomyopia, and is described centering on the differences from Embodiment 1.

[0034] like Figure 4-6 As shown, the lens prism is located at a local position of a semicircular area below the optical center, and the shape of the lens prism 2 can be elliptical, semicircular, square or other shapes.

[0035] Embodiment 3: This embodiment is a cyclofocal prism lens with the function of preventing myopia progression and treating pseudomyopia, and is described centering on the differences from Embodiment 1.

[0036] like Figure 7-9 As shown, the lens prism is located on the inner side of the ring-focus lens 1, the upper edge of the lens prism is a straight line, the straight line is 2-4mm away from the optical center, and the lower edge of the lens prism coincides with the lower edge of the ring-focus lens. When looking at an object through the lower focal part, a complete image can be formed.

[0037] Embodiment 4: This embodiment is a cyclofocal prism lens with the function of preventing myopia progression and treating pseudomyopia, and is described centering on the differences from Embodiment 1.

[0038] like Figure 7-9As shown, a plurality of concentric annular areas 5 are distributed on the inner side of the annular focus lens 1, and the luminance is constant within 3mm, 6mm or 30mm from the optical center, and the luminance of the annular area 5 outside the optical center by 3mm, 6mm or 30mm gradually decreases toward the periphery, and the amplitude of the gradual decrease is determined according to the design purpose, for example, a change value of 1-100 degrees, so that the annular focus lens 1 has a plurality of viewing fields with different luminances, and the lens prism is located on the outer side of the annular focus lens 1, and the upper edge of the lens prism is an arc, and the upper end of the arc is 3mm away from the optical center, and the lower edge of the lens prism coincides with the lower edge of the annular focus lens, so that when looking at an object through the lower focal part, a complete image can also be formed.

Claims

1. A cyclofocal prism lens having the function of preventing myopia from getting worse and treating pseudomyopia, characterized in that: The invention comprises a ring-focus lens, which is a ring-focus concave lens or a ring-focus plano lens. The outer side of the ring-focus lens has a plurality of ring-shaped areas with different degrees from the optical center to the periphery of the lens, and the degree of each ring-shaped area decreases step by step. A lens prism is arranged in a semicircular area below the optical center on the inner side of the ring-focus lens. The lens prism is a combination lens of a convex lens and a prism or a combination lens of a concave lens and a prism, wherein the inner surface of the lens prism is connected to the inner surface of the ring-focus lens, the outer surface of the lens prism is an outer convex surface or an inner concave surface or a plane, and the side surface of the lens prism extends vertically outward. A base top and a base are formed, the base top is oriented to the left or right, and the corresponding base is oriented to the right or left, and the thickness gradually decreases from the base to the base top until it is smoothly connected to the ring-focus lens; the lens prism and the ring-focus lens are a whole, or a combination; the lens prism is located at the entire position or a partial position of the semicircular area below the optical center, when it is in the entire position, the upper edge of the lens prism is a straight line or an arc, and the lower edge of the lens prism coincides with the lower edge of the ring-focus lens; when it is in the partial position, the lens prism is semicircular, circular, square or elliptical.

2. The cyclofocal prism lens having the function of preventing myopia progression and treating pseudomyopia according to claim 1, characterized in that: The luminance of the annular focus lens is constant within 3 mm of the optical center, and gradually decreases toward the periphery beyond 3 mm from the optical center, with a gradually decreasing amplitude of 1-100 degrees, so that the annular focus lens has more than 4 annular fields of view.

3. The cyclofocal prism lens having the function of preventing myopia progression and treating pseudomyopia according to claim 1, characterized in that: The ring-focus lens is a resin lens or a glass lens with a refractive index of 1.499-1.

9.

4. A cyclofocal prism lens having the function of preventing myopia from getting worse and treating pseudomyopia, characterized in that: The invention comprises a ring-focus lens, which is a ring-focus concave lens or a ring-focus plano lens. The inner side of the ring-focus lens has a plurality of ring-shaped areas with different degrees from the optical center to the periphery of the lens, and the degree of each ring-shaped area decreases step by step. A lens prism is arranged in a semicircular area below the optical center on the outer side of the ring-focus lens. The lens prism is a combination of a convex lens and a prism or a combination of a concave lens and a prism. The inner surface of the lens prism is connected to the inner surface of the ring-focus lens, the outer surface of the lens prism is an outer convex surface or an inner concave surface or a plane, and the side surface of the lens prism vertically extends outward to form A base top and a base, the base top is oriented to the left or right, and the corresponding base is oriented to the right or left, and its thickness gradually decreases from the base to the base top until it is smoothly connected to the ring-focus lens; the lens prism and the ring-focus lens are a whole, or a combination; the lens prism is located at the entire position or a partial position of the semicircular area below the optical center, when it is in the entire position, the upper edge of the lens prism is a straight line or an arc, and the lower edge of the lens prism coincides with the lower edge of the ring-focus lens; when it is in the partial position, the lens prism is semicircular, circular, square or elliptical.

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