CN204740408U - A kind of myopic defocus type functional contact lens - Google Patents

Abstract

The utility model relates to a myopic defocusing functional contact lens, comprising: a lens body, which is attached to the eyeball and made of opaque material; a through-hole structure, which is arranged on the lens body and is connected to the wearer. The position corresponding to the pupil, the aperture size of the through-hole structure is within the variation range of the pupil diameter of the wearer. The myopic defocusing functional contact lens provided by the utility model is designed to match with the lenses of different aperture sizes according to the different sizes of the pupils, so that the eye muscles and iris are not moved, and the eyes are always in a relaxed state. You can see objects clearly, which can reduce the occurrence of visual fatigue, and maintain a clear field of vision in this state, which can effectively prevent and solve related problems caused by accommodative fatigue and optical defocusing, so as to achieve the goal of myopia prevention and control Purpose. Moreover, the myopic defocusing functional contact lens provided by the utility model will not shift position along with the movement, so that the training of eye muscles is more efficient.

Description

A kind of myopic defocus type functional contact lens

technical field

The utility model relates to a contact lens, in particular to a myopic defocused functional contact lens.

Background technique

Through-hole glasses are special glasses with holes in the lens. Because they can block useless reflected light around them, they can make the target object clearly displayed, and achieve the purpose of exercising eye muscles and improving vision. Japanese scientists A utility model of through-hole glasses, each of which has five holes, but it can block unwanted reflected light around the through-hole glasses, the precise and scientific through-holes can accurately display the target object you want to see, and there is training Regarding the function of the eye muscles, according to a person from the company, a user with a vision of 0.6 can improve his vision to 1.2 after wearing the eye for 3 months.

However, there are many unreasonable things in the existing through-hole glasses: the existing through-hole glasses are used by supporting the lens through the frame, so there is a certain distance between the lens and the eyes, improper adjustment of the glasses or after a period of use will make the through-hole It cannot correspond to the pupil of the eye, and the lens will move when people move, which is not conducive to the training of visual objects and related visual functions.

Utility model content

In order to solve the problems of the background technology, the utility model provides a myopic defocused functional contact lens, including:

The lens body is attached to the eyeball and is made of opaque material;

The through-hole structure is arranged on the lens body at a position corresponding to the wearer's pupil, and the aperture size of the through-hole structure is within the variation range of the wearer's pupil diameter.

A preferred solution is: the contact lens also includes: a high molecular polymer layer, the high molecular polymer layer is arranged below the lens body and has a curved surface structure that matches the cornea of the eye, and is used for tear fluid attached to the cornea of the eye The surface of the layer is physiologically compatible with the eyes and has anti-UV and anti-glare functions.

Preferably, a first transparent coating layer is attached under the high molecular polymer layer through polymer material polymerization.

Preferably, the lens body is an optical composite layer, and the optical composite layer includes: a light-shielding layer attached to the upper surface of the polymer layer.

Preferably, the optical composite layer further includes: a pattern layer or pattern layer, which is attached to the upper surface of the light-shielding layer.

A preferred solution is that a second transparent coating layer is attached on the pattern layer or pattern layer through polymer material polymerization.

Preferably, the polymer layer is made of PMMA, PHEMA, PMMA and NVP copolymer, HEMA and MAA copolymer, IPN, polyurethane hydrogel, silicon hydrogel, fluoropolymer material.

Preferably, the opaque material is a high molecular polymer.

The preferred scheme is that the color of the pattern layer or pattern layer is close to the iris color of the wearer.

The myopic defocusing functional contact lens provided by the utility model is designed to match the lenses with different aperture sizes according to the different sizes of the pupils, so that the eyes can be kept in a relaxed state without moving the eye muscles and pupils. You can see objects clearly, which can reduce the occurrence of visual fatigue, and maintain a clear vision in this state, which can effectively prevent and solve related problems caused by accommodative fatigue and optical defocusing, so as to achieve the purpose of myopia prevention and control . Moreover, the myopic defocusing functional contact lens provided by the utility model will not shift position along with the movement, so that the training of eye muscles is more efficient.

Contact lens features of the utility model:

1. Prevent myopia from deepening;

2. Instead of the pupil function, train the adjustment ability of the ciliary muscle and the contraction function of the iris;

3. Instead of myopia glasses below 400 degrees, use the adjustment power to make up for the degree;

4. Improve the common "squinting" problem of pseudo-myopia;

5. Reduce the stimulation of harmful light emitted by TV and multimedia screens;

6. Reduce eye fatigue and adjust tension, improve vision.

Description of drawings

Fig. 1 is a sectional view of the utility model;

Fig. 2 is a side view of the utility model.

Detailed ways

When a person looks far away (beyond 5 meters), the axes of the eyes are parallel, the diopter adjustment is relaxed, and the pupil is dilated. When looking close (within 40cm), the eye axes of both eyes are rotated inward at the same time so that the lines of sight intersect at the position of the object being viewed. Refractive adjustment makes the object at the intersection of the eyes of sight form a clear image on the retina, and the pupils are also adjusted accordingly. These three visual functions completed almost at the same time are called "triple linkage of binocular vision".

Triple Movement of the Eye: The coordination of the various tissues of the eye as the eye adjusts. During accommodation, the ciliary muscle contracts, the lens becomes convex, the diopter increases, and the focus falls on the retina. When adjusting, the eyes rotate inwardly to increase the amount of convergence. As the pupils shrink, this will increase the depth of focus, and then the eyes control the amount of adjustment according to the depth of focus, so that the eyes can see clear near objects. It can also be said as follows: increase of adjustment -> increase of vergence -> reduction of pupil -> increase of depth of focus -> control of adjustment amount. The mechanism of binocular adjustment is as follows: near-seeing --- ciliary muscle contraction --- relaxation of suspensory ligaments of the crystal --- elastic deformation of the crystal --- generating and regulating the main visual function of the human body (visual objects are often time-distance) In recent times, its function is mainly realized by the coordinated movement of the inner and outer rectus muscles of the eye.

The premise of achieving the best refractive state is that the eyes have a strong visual function, and the strength of the visual function is precisely reflected by the triple linkage of binocular vision. The law of eye refractive state development is: from hyperopia to emmetropia and then to myopia, the development process is unstable, and the result of development is irreversible. A person eventually becomes hyperopia because the refractive state develops too slowly and shows a developmental lag, and becomes myopia when the refractive state develops too fast and shows advanced development. Recently, some scholars have pointed out that the change of myopia caused by seeing near is also a special case of form deprivation. The excessive tension caused by "nearsightedness" will slow down the reaction of seeing far away. This "slowed down farsightedness" is manifested as myopia or pseudomyopia. It is further proposed that the adjustment of the eyes when looking at near is not the cause of axial myopia, but that the adjustment function lags behind the set function when looking at near, so the image on the retina is blurred, and the compensatory elongation of the eyeball is formed in order to see clearly. Shortsighted.

According to the innovative theory of the through-hole effect of Dr. William Holly Showbeck, a world authority in ophthalmology, the scientifically designed myopic defocused functional contact lens allows light to enter the cornea through the through-hole, and the lens focuses on the retina, similar to the principle of a telescope . Reduce the linkage between the ciliary muscle and the pupil during near vision, so that the eyes are in a relaxed state for a long time, which can reduce the occurrence of visual fatigue. At the same time, it can prevent the deepening of myopia, replace the pupil function, train the focusing ability of the ciliary muscle, replace the myopia glasses below 400 degrees, use the adjustment power to make up the degree, and improve the common "squinting eyes" of pseudo-myopia It can also reduce the radiation and stimulation of harmful light from TVs, multimedia fluorescent screens, etc., so as to reduce eye fatigue and tension and improve vision.

To sum up, from the principle of triple linkage of binocular vision, we can see that when the eyes look at objects, the eye muscles and pupils are moving at the same time. We make a through-hole lens according to the linkage mechanism between the ciliary muscle and the iris in the eye structure principle Put it in front of your eyes, and according to the size of the pupil of the eye, design lenses with different specifications and apertures to match it, so that you can see objects clearly when your eyes are always in a relaxed state without moving the eye muscles and pupils. Reducing visual fatigue and maintaining a clear vision in this state can effectively prevent and solve related problems caused by accommodative fatigue and optical defocusing, so as to achieve the purpose of myopia prevention and control.

Below in conjunction with the accompanying drawings, the utility model will be further elaborated. A kind of myopia separation functional glasses provided by the utility model include:

The lens body 1 is attached to the eyeball and is an opaque material, the opaque material is a polymer, the lens body is an optical composite layer, and the optical composite layer includes:

The high molecular polymer layer 4, the high molecular polymer layer 4 is a curved surface structure matching with the cornea of the eye, used to attach to the surface of the tear layer of the cornea of the eye, and can be physiologically compatible with the eyes and has an anti-UV function and an anti-aging function. Dazzling light energy, that is, the high molecular polymer material has been mixed with anti-UV functional materials and anti-glare materials, and the bottom of the high molecular polymer layer 4 is attached with the first transparent coating layer 5 through the method of polymer material polymerization, so The high molecular polymer layer 4 is made of PMMA, PHEMA, PMMA and NVP copolymer, HEMA and MAA copolymer, IPN, polyurethane hydrogel, silicon hydrogel, fluoropolymer material;

A light-shielding layer 3, which is attached to the upper surface of the polymer layer 4, can block useless reflected light around;

Pattern layer or pattern layer 6, which is attached to the upper surface of the light-shielding layer 3, plays the role of cosmetic contact lenses and make-up, the color of the pattern layer or pattern layer 6 is close to the iris color of the wearer, and the pattern layer Or the pattern layer 6 is attached with a second transparent coating layer 7 through polymer material polymerization;

The transparent coating layer prevents the decolorization of the pattern layer or the pattern layer 3, and prevents the displacement between the polymer layer, the light-shielding layer 2 and the pattern layer or the pattern layer 3. Through the method principle of polymer material polymerization in the polymer polymerization method, The corresponding materials are aggregated together;

The through-hole structure 2 is arranged on the lens body 1 at a position corresponding to the wearer's pupil, and the aperture size of the through-hole structure 2 is within the variation range of the wearer's pupil diameter.

The use of myopic defocused functional contact lenses is a very safe way to restore normal vision. It can reduce eye fatigue. Very convenient.

Preliminary clinical evaluation found that after wearing functional through-hole vision contact lenses, the corrected visual acuity of myopia patients has improved, and the visual effect is relatively ideal, and more than 80% of myopia patients wearing glasses have the parameters of adjustment power, adjustment range and adjustment sensitivity have been improved to varying degrees.

Although the embodiment of the present utility model has been disclosed as above, it is not limited to the use listed in the description and the implementation, and it can be applied to various fields suitable for the present utility model. For those familiar with the art, Further modifications can easily be effected, so the invention is not limited to specific details without departing from the general concept defined by the claims and their equivalents.

Claims (8)

1. a kind of myopic defocus type functional contact lens, is characterized in that, comprises: The lens body is attached to the eyeball and is made of opaque material; The through-hole structure is arranged on the lens body at a position corresponding to the wearer's pupil, and the aperture size of the through-hole structure is within the variation range of the wearer's pupil diameter. 2. the myopia defocusing type functional contact lens according to claim 1, is characterized in that, described contact lens also comprises: The high molecular polymer layer, the high molecular polymer layer is arranged under the lens body and has a curved surface structure that matches the cornea of the eye, is used to attach to the surface of the tear layer of the cornea of the eye, and is physiologically compatible with the eye and has Anti-UV and anti-glare function. 3. The myopic defocusing functional contact lens according to claim 2, characterized in that a first transparent coating layer is attached to the bottom of the high molecular polymer layer by polymerizing the high molecular material. 4. The myopic defocusing functional contact lens according to claim 3, wherein the lens body is an optical composite layer, and the optical composite layer comprises: a light-shielding layer attached to the polymer polymer top surface of the layer. 5. The myopic defocusing functional contact lens according to claim 4, characterized in that, the optical composite layer further comprises: a pattern layer or a textured layer, which is attached to the upper surface of the light shielding layer. 6 . The myopic defocusing functional contact lens according to claim 5 , wherein a second transparent coating layer is attached on the top of the pattern layer or pattern layer by polymerization of polymer materials. 7 . 7. The myopic defocusing functional contact lens according to claim 1, characterized in that: the opaque material is a high molecular polymer. 8. The myopic defocusing functional contact lens according to claim 5, characterized in that: the color of the pattern layer or pattern layer is close to the iris color of the wearer.