An anamorphic prism lens combination lens for controlling myopia progression

Abstract

The present invention provides a defocused prism lens combination lens for controlling myopia progression, comprising an outer ring, an inner ring and a central area. The inner ring is located between the outer ring and the central area. The outer ring is a multi-point myopia defocus area with positive defocus along the optical axis. The inner ring is a prism dispersion defocus area with reverse dispersion deflection defocus along the optical axis. The central area is the pupil optical center area. The beneficial effects of the present invention are as follows: it has the effects of preventing and controlling progressive myopia in school-age children and adolescents, can inhibit the elongation of the eye axis, and prevent and control the growth of axial myopia.

Description

Technical Field

[0001] The present invention relates to a defocus prism lens combination, and particularly to a defocus prism lens combination lens for controlling myopia progression. Background Art

[0002] Currently, it is a consensus that the occurrence and development of myopia in children and adolescents are mainly due to the axial elongation of the eye caused by peripheral hyperopic defocus of the retina. Existing peripheral defocus lenses are designed with a concave lens in the central part of the lens to correct the central myopic defocus of myopic eyes, and a relative convex lens in the peripheral part to correct the peripheral hyperopic defocus of the retina, so as to achieve the purpose of slowing down the axial elongation rate. However, this method can only slow down the rate of axial development and cannot change the existing degree development of the eye axis.

[0003] Therefore, how to better inhibit the elongation of the eye axis has a positive significance for the prevention and control of myopia. Summary of the Invention

[0004] In order to solve the problems in the prior art, the present invention provides a defocus prism lens combination lens for controlling myopia progression.

[0005] The present invention provides a defocus prism lens combination lens for controlling myopia progression, including an outer ring, an inner ring, and a central area. The inner ring is located between the outer ring and the central area. The outer ring is a multi-point myopic defocus area with positive defocus on the optical axis. The inner ring is a prism dispersion defocus area with negative dispersion defocus and deflection on the optical axis. The central area is the pupil optical center area.

[0006] As a further improvement of the present invention, the prism dispersion defocus area includes a prism lens combination.

[0007] As a further improvement of the present invention, the prism lens combination includes a lens and several (at least two) triangular prisms. The triangular prisms are evenly arranged circumferentially around the pupil optical center area. The triangular prisms extend radially. The base of the triangular prism faces inwards and the apex faces outwards. The light refracted by the triangular prism is defocused and deflected in front of the retina around the equator of the eyeball, so that the eyeball adapts to the defocus and does not grow backward. The defocus and deflection of the light after the dispersion of the triangular prism shorten the growing eye axis.

[0008] As a further improvement of the present invention, the lens is any one of a concave lens, a convex lens, a plano lens, and a prism.

[0009] As a further improvement of the present invention, the prism diopter of the triangular prism is between 2 prism diopters and 5 prism diopters.

[0010] As a further improvement of the present invention, the direction of the base of the triangular prism changes with the change of the direction of the equator of the eyeball.

[0011] As a further improvement of the present invention, the pupil optical center area is the optical center area of a single-focus lens.

[0012] As a further improvement of the present invention, the multi-point myopic defocus area includes several (at least two) dot-shaped microlenses, and the dot-shaped microlenses are evenly arranged circumferentially around the circumferential direction of the prism dispersion deflection defocus area.

[0013] As a further improvement of the present invention, the diopter of the dot-shaped microlens is between +1.5DS and +3.0DS.

[0014] As a further improvement of the present invention, the dot-shaped microlens is circular.

[0015] As a further improvement of the present invention, the dot-shaped microlenses are arranged in concentric circles. For example, the dot-shaped microlenses are arranged in two concentric circles.

[0016] As a further improvement of the present invention, the multi-point myopic defocus area is a multi-point defocus convex lens or a multi-point defocus plano lens.

[0017] The beneficial effects of the present invention are as follows: This lens is divided into three parts: an outer ring, an inner ring, and a center area. The outer ring is a multi-point myopic defocus, that is, positive defocus of the optical axis; the inner ring is a prism dispersion deflection defocus, that is, reverse dispersion deflection defocus of the optical axis; the center area is the pupil optical center area. With the proposal of the concept of "peripheral defocus" by scientists and the continuous in-depth exploration and research by researchers, it has been found that by interfering with the normal vision of animals and observing the process of refractive error formation in the animal eyeballs, different types of defocus stimuli are formed in the animal eyeballs, which will have diametrically opposite induction effects on the growth of animal eyes. Hyperopic defocus (that is, imaging behind the retina) will induce the animal eyeball to grow towards the position behind the retina, the eye axis will increase, and the refractive state of the eyeball will develop towards myopia; myopic defocus (that is, imaging in front of the retina) will induce the animal eyeball to grow towards the position in front of the retina, the eye axis will shorten, and the refractive state of the eyeball will develop towards hyperopia. Based on this discovery, it is speculated that the "peripheral defocus" signal may play a major feedback guidance or induction role in the occurrence and development of myopia. The prism dispersion deflection defocus of the inner ring is reverse dispersion deflection defocus of the optical axis. Reverse deflection defocus of the optical axis means that a long-term positive and negative defocus and deflection of the light sense signal in a ring around the equator of the eyeball on the opposite side of the optical axis will cause the eyeball to grow in the opposite direction, and the reverse optical axis prism dispersion deflection defocus of the eyeball will shorten the eye axis. The center area is the optical center area of a single-focus lens. By combining the three parts of the outer ring, the inner ring, and the center area, this lens is produced to form a myopia prevention and control product. This product has the effect of preventing and controlling progressive myopia in school-age children and adolescents, can inhibit the elongation of the eye axis, and prevent the growth of axial myopia. Description of the Drawings

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other solutions can be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of a defocus prism lens combination lens for controlling myopia progression in the present invention.

[0020] Figure 2 It is a schematic diagram of the physical optical imaging area when a defocus prism lens combination lens for controlling myopia progression in the present invention enters the eye. Detailed implementation manners

[0021] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0022] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation on the protection scope of the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0024] The present invention will be further described below in conjunction with the accompanying drawings and detailed implementation manners.

[0025] Please refer to Figure 1-2, A multi-point defocus prism and diopter combination lens for preventing and controlling progressive myopia, mainly divided into three parts: an outer ring, an inner ring, and a central area. The outer ring is the multi-point myopia defocus area 1, used for forward defocus of the optical axis. The inner ring is the prism and diopter combination 2, used for dispersion deflection defocus of the prism group, that is, reverse dispersion deflection defocus of the optical axis. The central area is the pupil optical center area 5. The present invention combines the three parts of the outer ring, the inner ring, and the central area to produce the substrate of this product. This product has the effect of preventing and controlling progressive myopia in school-age children and adolescents. At the same time, the combination of the inner ring prism and the positive lens defocus lens in the outer ring can inhibit the elongation of the eye axis and prevent the growth of axial myopia.

[0026] As Figure 2 shown, light enters the central optical imaging area 8 of the eyeball under the action of the pupil optical center area 5, light enters the prism group refraction optical imaging area 7 of the eyeball under the action of the prism and diopter combination 2, and light enters the multi-point peripheral defocus optical imaging area of the eyeball under the action of the multi-point myopia defocus area 1.

[0027] The multi-point myopia defocus area 1, as the outer ring of the lens, functions to apply the hyperopic optical defocus of the retina to the myopic optical defocus area. With the optical center of the lens as the center point, the circular area with a diameter of 7 mm to 9 mm is the far-light optical center area.

[0028] A plurality of dot micro-lenses 9 are arranged in the multi-point myopia defocus area 1. The dot micro-lenses 9 are arranged in two concentric circles. The shape of the dot micro-lens 9 is circular. The diopter of the dot micro-lens is between +1.5 DS and +3.0 DS, and can be adjusted according to the defocus amount required by the patient.

[0029] The dot micro-lenses 9 are used to achieve forward optical defocus when children and adolescents with myopia view objects. It is preferably composed of 40 dot micro-lenses 9 combined into two concentric circles, and the diameter of each dot micro-lens 9 is 0.5 mm.

[0030] The multi-point myopia defocus area 1 is a multi-point defocus convex lens or a multi-point defocus plano lens.

[0031] The inner ring is an annular prism and diopter combination 2 composed of a plurality of prisms arranged. The deflection defocus is the reverse dispersion deflection defocus of the optical axis, and is used to achieve positive and reverse optical defocus when children and adolescents with myopia view objects.

[0032] The prism and diopter combination 2 further includes a prism apex 3 and a prism base 4, and the direction of the prism base 4 changes with the change of the equatorial direction.

[0033] The prism lens combination 2 includes lenses and several (at least two) triangular prisms. The triangular prisms are evenly arranged circumferentially around the pupil optical center area 5. The triangular prisms extend radially (i.e., the triangular prisms radiate from the center to the periphery). The base of the triangular prism faces inwards and the apex faces outwards. The light refracted by the triangular prism is defocused by deflection in front of the retina around the equator of the eyeball, causing the eyeball to adapt to the defocus and not grow backward. The defocus by deflection of the light after the dispersion of the triangular prism shortens the eye axis during growth and development.

[0034] The diopters of the triangular prisms are the same and form an inward circular arrangement.

[0035] The lens can be any one of a concave lens, a convex lens, a plano lens, and a prism.

[0036] The prism diopter of the triangular prism is between 2 prism diopters and 5 prism diopters, and can be specifically adjusted according to the monocular accommodation ability and binocular fusion ability of the patient.

[0037] The pupil optical center area 5 is the optical center area of a single-focus lens with a diameter of 5 mm.

[0038] The multi-point myopic defocus area 1 in the outer ring part of the lens and the pupil optical center area 5 in the center area of the lens are combined as the A mode of the lens, and the prism lens combination 2 in the inner ring is combined as the B mode for producing the lens. Through the production process of combining the molds, the AB molds are combined to process the substrate of the lens.

[0039] A multi-point defocus prism and lens combination lens for preventing and controlling progressive myopia provided by the present invention combines the multi-point defocus lens and the prism and lens combination lens into one body, which can inhibit the elongation of the eye axis and prevent and control the growth of axial myopia.

[0040] A multi-point defocus prism and lens combination lens for preventing and controlling progressive myopia provided by the present invention. The prism lens combination 2 is used for defocus by reverse dispersion deflection of the optical axis. Different from the previous peripheral positive lens defocus design, on the basis of the outer ring defocus, the present invention adds the prism defocus in the inner ring, deflects and defocuses the light refracted by the prism in front of the retina around the equator of the eyeball, causing the eyeball to adapt to the defocus and not grow backward. The defocus by deflection of the light after the dispersion of the triangular prism will shorten the eye axis during growth and development.

[0041] A multi-point defocus prism and lens combination lens for preventing and controlling progressive myopia provided by the present invention. The whole lens is a resin lens with a refractive index of 1.604. The light passes through the multi-point myopic defocus area 1 and forms an image in the paracentral area (rod cell area) of the retina. The light passes through the prism lens combination 2 and forms an image in the peripheral area of the retina, forming myopic defocus, blocking the signal of the growth of the pursuit focus of the eyeball, the elongation of the eye axis, and the continuous deepening of myopia, thereby achieving the control of the elongation of the eye axis and the alleviation of the deepening of myopia degree.

[0042] The above content is a further detailed description of the present invention in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention pertains, without departing from the concept of the present invention, several simple deductions or substitutions can still be made, and all should be regarded as falling within the protection scope of the present invention.

Claims

1. An anamorphic prism lens combination lens for controlling myopia progression, characterized in that: It includes an outer ring, an inner ring and a central area. The inner ring is located between the outer ring and the central area. The outer ring is a multi-point myopic defocus area with positive defocus along the optical axis. The inner ring is a prism dispersion defocus area with reverse dispersion deflection defocus along the optical axis. The central area is the pupil optical center area.

2. The defocus prism lens combination lens for controlling myopia progression according to claim 1, wherein: The prism dispersion defocus area includes a prism lens combination.

3. The defocused prism lens combination lens for controlling myopia progression according to claim 2, wherein: The prism lens combination includes a lens and a triangular prism. The triangular prisms are evenly arranged circumferentially around the pupil optical center area. The triangular prisms extend radially. The base of the triangular prism faces inwards and the apex faces outwards. The light refracted by the triangular prism is defocused and deflected in front of the retina around the equator of the eyeball, causing the eyeball to adapt to defocus and not grow backward. The defocus caused by the deflection of the light after prism dispersion shortens the eye axis during growth and development.

4. The defocus prism lens combination lens for controlling myopia progression according to claim 3, characterized in that: The lens is any one of a concave lens, a convex lens, a plano lens, and a prism.

5. The defocused prism lens combination lens for controlling myopia progression according to claim 3, wherein: The prism diopter of the triangular prism is between 2 prism diopters and 5 prism diopters.

6. The defocused prism lens combination lens for controlling myopia progression according to claim 3, wherein: The direction of the base of the triangular prism changes following the change of the direction of the eyeball equator.

7. The defocus prism lens combination lens for controlling myopia progression according to claim 1, wherein: The pupil optical center area is the optical center area of a single-focus lens.

8. The defocused prism lens combination lens for controlling myopia progression according to claim 1, wherein: The multi-point myopic defocus area includes dot-like microlenses, and the dot-like microlenses are evenly arranged circumferentially around the prism dispersion defocus area.

9. The defocus prism lens combination lens for controlling myopia progression according to claim 8, wherein: The diopter of the dot-like microlens is between +1.5DS and +3.0DS. The dot-like microlens is circular, and the dot-like microlenses are arranged in concentric circles.

10. The defocus prism lens combination lens for controlling myopia progression according to claim 1, wherein: The multi-point myopic defocus area is a multi-point defocus convex lens or a multi-point defocus plano lens.

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