JP3666891B2

JP3666891B2 - Control method executed by myopia / presbyopia prevention device and myopia / presbyopia prevention device

Info

Publication number: JP3666891B2
Application number: JP26037093A
Authority: JP
Inventors: 正男山本
Original assignee: Scalar Corp
Current assignee: Scalar Corp
Priority date: 1993-09-27
Filing date: 1993-09-27
Publication date: 2005-06-29
Anticipated expiration: 2020-06-29
Also published as: JPH0788143A

Description

【０００１】
【産業上の利用分野】
本発明は、近視や老視を予防するための予防具及びそれを用いて近視や老視を予防する方法に関する。
【０００２】
【発明の背景】
テレビやゲーム機器、あるいは多種多様な出版物の氾濫により近視の原因となる近傍視（近くの視認対象物を見続けること）の過剰化がますます進んで来ている。そして、このような近傍視の過度の継続が近視の大きな原因の一つであることはよく知られている。一方、近傍視に適当な間隔で遠方視を挟んで目を休めることにより、近視のある程度の予防が可能であるとの提言も古くよりなされている。しかし、テレビやゲーム機器などに夢中の状態で遠方視を随時挟むことは現実問題として実行しがたいのが実情である。
【０００３】
また、老視についても、近傍視に遠方視を随時挟むことにより、老視の発生や進行をある程度防止できることが知られているが、この場合にもその実行の現実的困難性は同様である。
【０００４】
【発明が解決しようとする課題】
このような事情のもとになされたのが本発明で、近傍視状態において適宜な間隔で言わば外的に遠方視を与えることにより近視や老視を予防するための予防具及びそれを用いた予防方法の提供を目的としている。
【０００５】
【課題を解決するための手段】
本発明による予防具は、非レンズ状態と所定の焦点距離を与えるレンズ状態とに可変可能な視距離調整手段を一対備えると共に、この両視距離調整手段の非レンズ状態とレンズ状態とを所定の時間間隔でプログラム的に制御するための制御手段を備えてなっている。
【０００６】
この予防具を用いての近視や老視の予防は、予防具の両視距離調整手段を眼鏡様に装着して用いた状態で両視距離調整手段の非レンズ状態とレンズ状態とをプログラム的に制御することにより、近傍視状態のままで所定時間について遠方視を与えるようにしてなっている。
【０００７】
即ち、両視距離調整手段を非レンズ状態にして近傍視を継続している間に両視距離調整手段を予め設定したプログラムに基づき適当な間隔で一時的にレンズ状態とすることにより、言わば外部的に遠方視を挿入させるもので、このような遠方視の外部的な挿入により知らず知らずの内に近視や老視の予防を図ることができる。
【０００８】
視距離調整手段としては、形状調節が可能な透明体を用いる構造、つまり両面が平面である非レンズ状態と両面乃至片面が球面状態であるレンズ状態を選択的にとれる透明体を用いる構造がその一つとして可能である。このような透明体としては、例えば適当な液体を伸縮可能な素材で形成した密閉構造の透明な収納体に充填し且つ収納体の周囲を適宜なフレームで固めた構造としたものなどが可能で、この場合には収納体内の液体量を調節することにより、非レンズ状態とレンズ状態の調節を行える。また、例えばシリコーンゲルを用いて透明体を形成すると、電場のかけ方により形状の調整が可能であるというシリコーンゲルの特性を利用して非レンズ状態とレンズ状態との可変化が可能である。
【０００９】
視距離調整手段として可能な他の一つは、所定の視距離を与えるレンズを適宜なフレーム体で保持させ、このフレーム体内で当該レンズを移動させて視野内に選択的に位置決めさせる構造がある。
【００１０】
【実施例】
以下、本発明の実施例を説明する。
第１実施例（図１及び図２）
この実施例は、液体充填の透明体を視距離調整手段として用いた例である。即ち、予防具１は、所定の屈折率を持つ液体を伸縮可能で透明な素材製で密閉構造に形成した収納体に充填してなる一対の透明体２、２を眼鏡状の構造でそれぞれフレーム体３に保持させ、この両透明体２、２の液体量をフレーム体３のつる部３ｔに取り付けた制御手段４により調整できるようにしてなっている。制御手段４は、プログラム的な制御機能を備えており、これに基づいて両透明体２、２の液体量を所定の時間間隔で変化させそれぞれの液体量に対応して一定時間その状態を保つ制御を行うようになっている。具体的には、両フレーム体３、３を接続する接続部材５を管構造とし、この接続部材５の各端部を各収納体に接続すると共に接続部材５に制御手段４からの供給管６を接続しており、この供給管６を介して制御手段４による液体量調整を伝えるようにしている。そして、これに応じて両透明体２、２は、液体量が少ない状態で両面が平面である非レンズ状態となり、液体量が多い状態で両面が球面であるレンズ状態となる。
【００１１】
第２実施例（図３）
この実施例は、レンズ移動式の視距離調整手段を用いた例である。即ち、予防具１０は、フレーム体１１にレンズ１２を矢示Ｘの如く移動可能に保持させた視距離調整手段１３を眼鏡状に一対組み合わせ構造とされ、この各視距離調整手段１３のレンズ１２に図示せぬ制御手段により前記移動を行わせるようにしてなっている。そして、図に実線で示す位置にレンズ１２が位置している状態が非レンズ状態、つまり通常の視距離を与える状態であり、通常の近傍視となり、図に想像線で示す位置にレンズ１２が位置している状態がレンズ状態、つまり遠方視様の視距離を与える状態であり、近傍視状態のままで遠方視となる。
【００１２】
【発明の効果】
本発明は、以上説明してきた如く、近傍視を継続している間に外部的に遠方視を挿入させるようになっているので、近傍視に遠方視を挟むことによる近視や老視の予防効果を有効に発揮させることができる。
【図面の簡単な説明】
【図１】本発明の第１実施例による予防具を模式的に示す斜視図。
【図２】図１の予防具の断面図。
【図３】本発明の第２実施例による予防具を模式的に示す正面図。
【符号の説明】
１予防具
２透明体（視距離調整手段）
４制御手段
１０予防具
１１フレーム体
１２レンズ
１３視距離調整手段[0001]
[Industrial application fields]
The present invention relates to a preventive device for preventing myopia and presbyopia and a method for preventing myopia and presbyopia using the same.
[0002]
BACKGROUND OF THE INVENTION
Increasing numbers of near vision that causes myopia (continuing to see nearby objects to be seen) due to the flooding of televisions, game machines, and a wide variety of publications have been increasing. And it is well known that such excessive continuation of myopia is one of the major causes of myopia. On the other hand, it has been proposed for a long time that a certain degree of myopia can be prevented by resting the eyes with an appropriate interval for near vision. However, the reality is that it is hard to execute as a real problem to keep distant vision from time to time in a state of being obsessed with televisions and game machines.
[0003]
As for presbyopia, it is known that the presbyopia can be prevented from occurring or progressing to some extent by inserting far vision into the near vision as needed. .
[0004]
[Problems to be solved by the invention]
Under the circumstances, the present invention is the present invention, and a preventive device for preventing myopia and presbyopia by giving far-sightedness externally at appropriate intervals in the near vision state and the same are used. The purpose is to provide prevention methods.
[0005]
[Means for Solving the Problems]
The preventive device according to the present invention includes a pair of viewing distance adjustment means that can be changed between a non-lens state and a lens state that gives a predetermined focal length, and the non-lens state and the lens state of the both viewing distance adjustment means are determined in a predetermined manner. Control means for programmatic control at time intervals is provided.
[0006]
The prevention of myopia and presbyopia using this preventive device is a program that sets the non-lens state and lens state of the binocular distance adjustment means in a state where the binocular distance adjustment means of the preventive device is worn and used like glasses. By controlling the distance, the distance vision is given for a predetermined time while in the near vision state.
[0007]
That is, by setting the binocular distance adjustment means to the lens state temporarily at an appropriate interval based on a preset program while the near vision is continued with the binocular distance adjustment means in the non-lens state, so to speak In this way, it is possible to prevent myopia and presbyopia without knowing it.
[0008]
As the viewing distance adjusting means, a structure using a transparent body whose shape can be adjusted, that is, a structure using a transparent body capable of selectively taking a non-lens state in which both surfaces are flat and a lens state in which both surfaces or one surface is spherical is used. One is possible. As such a transparent body, for example, a structure in which an appropriate liquid is filled in a transparent storage body having a sealed structure formed of a stretchable material and the periphery of the storage body is solidified with an appropriate frame is possible. In this case, the non-lens state and the lens state can be adjusted by adjusting the amount of liquid in the storage body. Further, for example, when a transparent body is formed using silicone gel, the non-lens state and the lens state can be changed using the property of silicone gel that the shape can be adjusted by applying an electric field.
[0009]
Another possible viewing distance adjusting means is a structure in which a lens that gives a predetermined viewing distance is held by an appropriate frame body, and the lens is moved within the frame body to selectively position it in the field of view. .
[0010]
【Example】
Examples of the present invention will be described below.
First embodiment (FIGS. 1 and 2)
In this embodiment, a liquid-filled transparent body is used as the visual distance adjusting means. In other words, the preventive device 1 includes a pair of transparent bodies 2 and 2 formed by filling a container made of a transparent material that can be expanded and contracted and formed in a sealed structure with a liquid having a predetermined refractive index in a glasses-like structure. The liquid amount of both the transparent bodies 2 and 2 is held by the body 3 and can be adjusted by the control means 4 attached to the hanging portion 3t of the frame body 3. The control means 4 has a programmatic control function, and based on this, the liquid amount of both the transparent bodies 2 and 2 is changed at a predetermined time interval, and the state is maintained for a certain time corresponding to each liquid amount. It comes to perform control. Specifically, the connecting member 5 that connects both the frame bodies 3 and 3 has a pipe structure, and each end of the connecting member 5 is connected to each storage body, and the supply pipe 6 from the control means 4 is connected to the connecting member 5. The liquid amount adjustment by the control means 4 is transmitted via the supply pipe 6. Accordingly, both the transparent bodies 2 and 2 are in a non-lens state where both surfaces are flat when the amount of liquid is small, and are in a lens state where both surfaces are spherical when the amount of liquid is large.
[0011]
Second embodiment (FIG. 3)
This embodiment is an example using a lens-moving viewing distance adjusting means. That is, the preventive device 10 has a pair of viewing distance adjusting means 13 in which the lens 12 is held on the frame body 11 so as to be movable as indicated by an arrow X, and has a paired structure like glasses. The movement is performed by control means (not shown). The state in which the lens 12 is located at the position indicated by the solid line in the figure is a non-lens state, that is, a state in which a normal viewing distance is given, and normal near vision is obtained, and the lens 12 is located at the position indicated by the imaginary line in the figure. The positioned state is a lens state, that is, a state in which a far-distance viewing distance is given, and the far-sighted state remains in the near vision state.
[0012]
【The invention's effect】
As described above, the present invention is designed to insert distance vision externally while continuing near vision, so that the effect of preventing myopia and presbyopia by placing far vision in the near vision. Can be exhibited effectively.
[Brief description of the drawings]
FIG. 1 is a perspective view schematically showing a preventive device according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view of the preventive device of FIG.
FIG. 3 is a front view schematically showing a preventive device according to a second embodiment of the present invention.
[Explanation of symbols]
1 Prevention tool 2 Transparent body (visual distance adjustment means)
4 Control means 10 Prevention tool 11 Frame body 12 Lens 13 Viewing distance adjustment means

Claims

A pair of viewing distance adjusting means capable of changing between a non-lens state and a lens state providing a predetermined focal length are provided, and the non-lens state and the lens state of the both viewing distance adjusting means are controlled at predetermined time intervals. With control means,
Both of the pair of viewing distance adjusting means are transparent bodies capable of selectively taking a non-lens state in which both surfaces are flat and a lens state in which both surfaces or one surface is a spherical state,
By wearing like glasses, the user can see the outside through the pair of viewing distance adjusting means.
Myopia / presbyopia prevention device.

A control method executed by the preventive device according to claim 1,
In order to give a distance vision state for a predetermined time at an appropriate interval to a user in a near vision state wearing and using the binocular distance adjustment means of the preventive device like glasses, the control means includes the Control the non-lens state and the lens state of the both viewing distance adjusting means at an appropriate interval .
Control method.