CN215813592U

CN215813592U - Compound prism bifocal myopia prevention and control glasses capable of passing purple light

Info

Publication number: CN215813592U
Application number: CN202122177109.0U
Authority: CN
Inventors: 马乾湘
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-02-11
Anticipated expiration: 2031-09-09

Abstract

The utility model discloses a pair of compound prism bifocal myopia prevention and control glasses capable of passing purple light, which comprises an external lens and an endoscope, wherein the external lens is detachably hung on the endoscope, the top end of an intermediate nose stop of the endoscope is provided with a groove, the bottom of the intermediate nose stop of the external lens is fixedly connected with a lug, the lug is matched and spliced with the groove, the surface of the endoscope is plated with a film layer capable of passing through purple light with the wavelength of 360 and 400nm, and the external lens adopts a base internal prism with the bottom facing inwards and the bottom facing towards 6 delta and + 2.25D. Compared with the prior art, the utility model has the advantages that: the growth of the ocular axis is controlled, the myopia is controlled to be deepened, and the adjusting and dispersing systems are balanced, so that the binocular vision posture of the teenager progressive myopia patient is more comfortable, and the myopia delay and deepening are reduced.

Description

Compound prism bifocal myopia prevention and control glasses capable of passing purple light

Technical Field

The utility model relates to the technical field of glasses, in particular to a pair of myopia prevention and control glasses with a composite prism capable of passing purple light.

Background

The adolescent is in the eyeball development stage, uses eyes in a short distance for a long time, and is over-regulated, which is one of the main reasons for the myopia deepening. The adjustment force required by the eyes when the eyes see near objects is different from that required by the eyes when the eyes see far objects, so that the actual power required by the eyes when the eyes see near objects is different from that required by the eyes when the eyes see far objects, and the common spectacle lenses cannot meet the requirements. When the eye is near, the problem can be solved by externally hanging a low-power convex lens (plus +1.50D), thereby reducing the regulation of eyes, relaxing the tension of eye muscles and slowing the rise of the myopia power. However, the addition of a convex positive lens at near vision reduces the lens lag, resulting in a substantial increase in the lateral canting.

And animal experiments are carried out on the chickens, and the results show that if the chickens suffering from myopia live in a purple light environment, the expression of genes for inhibiting myopia in vivo is enhanced, the increase range of the length of the axes of the chickens is reduced, and the myopia symptoms are controlled. In clinical studies, the situation of wearing different spectacles was compared, and it was found that myopia symptoms were suppressed in persons using contact lenses that were able to transmit purple light, compared to persons using contact lenses that were not able to transmit purple light and ordinary spectacles. The wavelength of purple light is 360-400nm, and the purple light is rich in sunlight, because the purple light is very adjacent to ultraviolet rays, and ordinary spectacle lenses are coated with ultraviolet-proof film layers to block all light rays below 400nm including purple light, and experiments prove that the purple light lack caused by excessive ultraviolet protection is possibly the reason of myopia.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the technical defects and provide the compound prism bifocal myopia prevention and control glasses capable of passing purple light, which controls the growth of the axis of eyes and the myopia deepening, balances the adjusting and converging and diverging systems, and makes the binocular vision posture of a teenager progressive myopia patient more comfortable, thereby reducing the myopia delay and deepening.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the utility model provides a compound prism bifocal myopia prevention and control glasses of accessible purple light, includes external lens and scope, external lens can dismantle to hang and establish on the scope, the scope in the middle of the nose keep off the top and be equipped with the recess, the external lens in the middle of the bottom fixedly connected with lug that the nose kept off, lug and recess cooperate and peg graft, the scope surface plate into the accessible wavelength be 360 and give other care of the rete of 400nm purple light, external lens adopt the end 6 delta inwards and +2.25D base inner prism.

Furthermore, the convex block is made of rubber materials or magnetic materials, when the convex block is made of rubber materials, the inner wall of the groove is provided with the rubber layer, and when the convex block is made of magnetic materials, the inner wall of the groove is provided with the metal layer.

Furthermore, the bottom end of the external hanging lens is connected with a rubber hook, and the bottom end of the internal mirror is hooked by the rubber hook to be fixed when the external hanging lens is connected with the internal mirror.

Compared with the prior art, the utility model has the advantages that: the utility model does not plate the ultraviolet-proof film layer of the conventional lens in the design of the inner lens, and plates the film layer of purple light which can pass through light rays of 360 and 400nm, and when the spectacles are worn, the purple light between 360 and 400nm in outdoor sunlight enters human eyes to play the roles of controlling the increase of the axis of the eyes and controlling the deepening of myopia.

The external hanging lens adopts a +2.25D and 6 delta base internal prism, which can reduce the lag and the external camouflaging caused by the lens to the maximum extent (-0.33D and-2.4 delta). This lens-prism combination reduces positive lens-induced external coma by 4.5 delta compared to the +2.25D lens alone, which is effective for 27 out of 29 children (93%), and reduces the need for fused vergence at near vision using add-on lenses when attempting to control myopia progression, balancing accommodation and vergence systems, making the binocular vision pose more comfortable for adolescent progressive myopes, thereby reducing myopia retardation and progression.

Drawings

Fig. 1 is a schematic structural view of the present invention.

FIG. 2 is a schematic illustration of the split structure of the present invention.

As shown in the figure: 1. the external hanging lens comprises an external hanging lens body 2, an endoscope 3, a groove 4, a bump 5 and a rubber hook.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model provides a compound prism bifocal myopia prevention and control glasses of accessible purple light, includes external lens 1 and scope 2, external lens 1 can dismantle to hang and establish on scope 2, scope 2 in the middle of the nose keep off the top and be equipped with recess 3, the bottom fixedly connected with lug 4 of nose fender in the middle of external lens 1, lug 4 and recess 3 cooperate the grafting, 2 surfaces of scope plate into the accessible wavelength be 360 and add the rete of 400nm purple light, external lens 1 adopt the end inwards 6 delta and +2.25D base inner prism.

The lug 4 adopt rubber materials or magnetic materials, when the lug 4 adopts rubber materials, the inner wall of the groove 3 is provided with a rubber layer, and when the lug 4 adopts magnetic materials, the inner wall of the groove 3 is provided with a metal layer.

The bottom end of the external hanging lens 1 is connected with a rubber hook 5, and the bottom of the external hanging lens 1 is hooked with the bottom end of the endoscope 2 to be fixed through the rubber hook 5 when the external hanging lens 1 is connected with the endoscope 2.

When the utility model is implemented specifically, the utility model wears the endoscope, the glasses legs of the endoscope are hung on the ears, the nose block in the middle of the endoscope is put on the two sides of the nose, and the endoscope is plated with the film layer which can pass through purple light with light of 360-400nm, so that when the spectacles are worn, the purple light between 360 and 400nm in outdoor sunlight enters the eyes to play the roles of controlling the increase of the axis of the eyes and controlling the deepening of myopia.

When long-time short-distance viewing is needed, the external hanging lens is hung on the endoscope, when the external hanging lens is hung, a bump of the external hanging lens is inserted into a groove at the top of the middle of the endoscope for fixation, the bottom end of the endoscope is hooked by a rubber hook at the bottom of the external hanging lens, the external hanging lens is further fixed on the endoscope, the external hanging lens adopts a +2.25D and 6 delta base inner prism, and the lag and the external cambers (-0.33D and-2.4 delta) caused by the lens can be reduced to the maximum extent. This lens-prism combination reduces positive lens-induced external coma by 4.5 delta compared to the +2.25D lens alone, which is effective for 27 out of 29 children (93%), and reduces the need for fused vergence at near vision using add-on lenses when attempting to control myopia progression, balancing accommodation and vergence systems, making the binocular vision pose more comfortable for adolescent progressive myopes, thereby reducing myopia retardation and progression.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a compound prism bifocal myopia prevention and control glasses of accessible purple light which characterized in that: including external lens (1) and scope (2), external lens (1) can dismantle to hang and establish on scope (2), scope (2) in the middle of the nose keep off the top and be equipped with recess (3), the bottom fixedly connected with lug (4) that the nose kept off in the middle of external lens (1), lug (4) and recess (3) cooperate and peg graft, scope (2) surface plate into the accessible wavelength be 360 and become the rete of 400nm purple light, external lens (1) adopt end 6 delta and +2.25D base inner prism inwards.

2. The glasses for preventing and controlling myopia with compound prism and bifocal as claimed in claim 1, wherein the glasses comprise: the rubber layer is arranged on the inner wall of the groove (3) when the lug (4) is made of rubber materials or magnetic materials, and the metal layer is arranged on the inner wall of the groove (3) when the lug (4) is made of magnetic materials.

3. The glasses for preventing and controlling myopia with compound prism and bifocal as claimed in claim 1, wherein the glasses comprise: the bottom end of the external hanging lens (1) is connected with a rubber hook (5), and when the external hanging lens (1) is connected with the endoscope (2), the bottom end of the endoscope (2) is fixed by the aid of the rubber hook (5).