JP2017140516A - Myopia treatment device by mirror - Google Patents

Abstract

PROBLEM TO BE SOLVED: To treat myopia.SOLUTION: When installing two mirrors in front of both eyeballs, and viewing with both eyeballs an object in front thereof via reflex of the two mirrors installed in front of the eyeballs, the mirrors are installed so as to make a cross point of visual axes of both eyeballs closer than the viewed object. With this, since the object actually viewed becomes farther than a part where the visual axes are crossed, the thickness of crystalline lenses used by the congestion should be thinned more than ever so as to focus a clear image on the retina. As a result of this, when the myopia treatment device is used, adjustment of the thickness of the crystalline lens due to congestion reflex is changed in the direction of thinning.SELECTED DRAWING: Figure 3

Description

  The present invention is a myopia treatment tool that uses a mirror to generate a convergence (inward alignment) in the line of sight stronger than the direction toward the object to be viewed, thereby performing myopia treatment.

The basic structure of the eyeball is as shown in FIG. 1, and the reflected light from the object is refracted when passing through the lens in the front of the eyeball and forms a clear image on the retina. When looking at a nearby object, the lens is thickened, and when looking at a distant object, the lens is thinned. The myopic eye is a state in which the lens has been adjusted to be thicker than necessary with respect to the distance of the object, and a clear image cannot be formed on the retina.
Conventional myopia treatment tools repeatedly move the object away and close, or install a lens in front of the eye and change the lens strength to change the lens thickness, etc. It was aimed at recovery.
The mechanism that adjusts the convergence (inner alignment) of both eyes and the thickness of the lens is automatically linked, and this is called convergence reflection. Myopia treatment that seeks the cause of myopia by excessive tension of the ciliary muscle that thickens the lens and the adductor muscle that converges both eyes and tries to weaken the convergence of both eyes to release the tension The tool is Patent Document 1 of the prior art document. As shown in FIG. 4, the myopia treatment device of Patent Document 1 has a prism placed in front of both eyes. The orientation of the prism is thicker on the inner side (nose side) and thinner on the outer side (ear side). I'm trying to come. If it does in this way, the reflected light from a target object will be bent inside, as a result, a eyes | visual_axis will open outside and the degree of convergence (inward alignment) will be weakened. This is exactly the opposite of the present invention.

JP 2004-49820 A

According to the above prior art, myopia is caused by excessive tension such as ciliary muscles that change the thickness of the crystalline lens and adductor muscles that converge the eyeball. Therefore, assuming that releasing the tension is a treatment for myopia, the direction in which the prism is installed is determined so as to reduce the convergence (inward alignment) required for both eyes to see the object.
In addition, all other conventional myopia treatment devices are considered to cause myopia due to excessive tension of the ciliary muscle, and the purpose is to relieve the tension.
However, the true cause of myopia is still unclear, and myopia treatment tools based on the idea that myopia is caused by excessive tension of the ciliary muscles and adductor muscles have been remarkably effective. Absent.

  In the present invention, the direction of the line of sight is changed using a mirror instead of a prism, and the direction of the change is changed so as to increase the degree of convergence (inset) contrary to the conventional myopia treatment tool.

There is a reaction relationship called convergence reflection between the convergence (inner focus) of both eyes and the adjustment of the lens thickness. That is, the closer the binocular vergence (inner alignment) is, the closer the object is being viewed, so that a reaction of increasing the lens thickness occurs in order to form a clear image on the retina.
The present invention seeks to treat myopia by finding the cause of myopia in the problem of convergence reflection and correcting it. The problem of convergence reflection is that when both eyes are converging and looking at an object, it is thicker than the thickness of the lens required to see the object at the distance of the object. That's what it means. So, at this time, if the object you are actually looking at is far away from where the line of sight intersects due to the convergence (inner focus) of both eyes, the eye has been used for the convergence until now. If it is not thinner than the lens thickness, a clear image cannot be formed on the retina, and the eyes do so.
This will be described with reference to FIG. The reflected light from the object at position A enters the eyeball after being reflected by the two mirrors. Then, light from the direction B enters the eyeball, and the eyeball converges (inward) so that the line of sight is directed toward the direction B, and tries to have a lens thickness corresponding to the convergence. However, the eye actually sees the reflected light coming from the object in A, and the eye cannot form a clear image on the retina unless the lens is thinned. As a result, the eye has a thin lens thickness. To do. If such a state continues, the adjustment of the lens thickness due to the convergence reflection will change to become thinner than before, and as a result, myopia will be healed.
As described above, while the prior art reduces the congestion (inner alignment) and allows nearby objects to be seen, the present invention, on the contrary, increases the congestion (inner alignment) and sees distant objects. Try to let them.
Furthermore, the present invention uses the principle of “correcting the problem of congestion reflection” that the prior art has not paid attention to, and has an effect that could not be achieved by the prior art.
It should be noted that the present invention is effective even when used in the state of wearing myopia correcting glasses normally used by myopic persons.

It is sectional drawing of an eyeball. This is the direction of the optical path and line of sight when the object is viewed with both eyes. The direction of the optical path and line of sight when using the present invention. This is the direction of the optical path and line of sight when using a conventional (prior art) myopia treatment tool.

Hereinafter, the form for implementing this invention is demonstrated based on FIG.
(B) Two mirrors are installed in front of both eyes.
(B) The direction of the reflected light from the object to be viewed at that time is changed by the mirror in front of the eyes so that the intersection of the lines of sight of both eyes is closer to the object to be viewed.

(1) Cornea (2) Lens (3) Ciliary muscle (4) Retina (5) Object (6) Reflected light from object (7) Eyeball (8) Line of sight (9) Mirror (10) Prism

Claims (1)

  Using a suitable holder, place the first mirror diagonally in front of the left eyeball. At that time, the mirror surface of the mirror can be seen from the left eye, and the mirror surface is on the outside (left ear side). Then, the second mirror is placed obliquely outside the first mirror (on the left ear side), with the mirror surface of the first mirror and the second mirror. The mirror surface of the second mirror is reflected on the mirror surface of the first mirror when viewed from the left eye, and the front object is reflected on the mirror surface of the reflected second mirror. After making it appear (that is, after installing the two mirrors so that the left eye can see the object in front through the two mirrors) Although installed, the myopia treatment tool is positioned symmetrically (centered around the nose) with the two mirrors on the left eyeball side.

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