JPS60129045A - Sight restoration exercise apparatus - Google Patents

Sight restoration exercise apparatus

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Publication number
JPS60129045A
JPS60129045A JP58237522A JP23752283A JPS60129045A JP S60129045 A JPS60129045 A JP S60129045A JP 58237522 A JP58237522 A JP 58237522A JP 23752283 A JP23752283 A JP 23752283A JP S60129045 A JPS60129045 A JP S60129045A
Authority
JP
Japan
Prior art keywords
optotype
person
holder
muscles
visual
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP58237522A
Other languages
Japanese (ja)
Other versions
JPS6215227B2 (en
Inventor
均 中井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP58237522A priority Critical patent/JPS60129045A/en
Publication of JPS60129045A publication Critical patent/JPS60129045A/en
Publication of JPS6215227B2 publication Critical patent/JPS6215227B2/ja
Granted legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 害を、眼筋、つまり眼球の外側にある外眼部及び眼球の
内側にある内眼筋の機能を正常化或いは強化することを
介して自然的に治癒させようとする視力回復訓練装置に
係り、ヒトと対面すべき視標を、視穆保持具の往復動を
介してヒトの前方数メートルの距離間を往復動させ得る
ようにした装置、並びにヒトと対面すべき視標を、視標
保持具の往復動を介してヒトの前方数メートルの距離間
を往復動させ得るようにすると共に、その往復動間に適
宜の眼で追える速度で公転させ得るようにした装置に関
する。
[Detailed Description of the Invention] An attempt is made to naturally cure harm through normalizing or strengthening the functions of the ocular muscles, that is, the external ocular muscles located on the outside of the eyeball and the internal ocular muscles located inside the eyeball. This invention relates to a visual acuity recovery training device that allows an optotype to be faced with a person to be moved back and forth over a distance of several meters in front of the person through the reciprocating movement of a vision holder; To enable a visual target to be moved back and forth over a distance of several meters in front of a person through the reciprocating movement of a visual target holder, and to be able to revolve at a speed that can be followed by an appropriate eye during the reciprocating movement. related to the device.

従来の仮性近視などを治癒させるべき視力回復−訓練装
置は、大小種々の、多数のランドルト環なとの視標を直
線状に或いは円周状に配列した印刷物などをヒトから一
定距離だけ距てて対面状に配置し、特定のランドルト環
などの視標を間欠的に繰返してそのヒVに注視させるこ
とによって主として毛様体筋などの眼球の内部にある筋
の機能を高めて眼の調節力を強化、正常化しようとする
ものが多かったが、多数のヒトに効果を挙げるには至っ
ていないのが実状である。
Conventional visual acuity restoration/training devices for curing pseudo-myopia etc. use a printed matter with a large number of Landolt rings of various sizes arranged linearly or circumferentially at a certain distance from the person. By intermittently repeating a specific optotype, such as Landolt's ring, and having the eye gaze at it, the functions of the muscles inside the eyeball, such as the ciliary muscle, are mainly enhanced to improve eye accommodation. Many attempts have been made to strengthen and normalize power, but the reality is that this has not been effective for many people.

本発明はそのように従来の視力回復訓練装置が主として
眼球内部の筋の働きを高めることだけに留意してきたき
らいのあることに着眼し、それを眼球内部の筋は勿論、
眼球の外部にある筋も等しくその動きを強化する訓練の
できるような装置に改良して幅広く多数のヒトの視力回
復に役立つようにすると共に、誰にでも正確にかつ簡便
に使用できて実効を挙げ得るような装置とすることを目
的としている。
The present invention focuses on the fact that conventional vision recovery training devices tend to focus only on increasing the function of the muscles inside the eyeball, and aims to improve the function of the muscles inside the eyeball.
By improving the device to enable training to equally strengthen the movement of the muscles on the outside of the eyeball, we aim to make it useful for restoring vision in a wide range of people, and to make it easy for anyone to use accurately and effectively. The purpose is to create a device that can be used in a variety of ways.

本発明をその実施例を示す図面に基いて詳述すれば次の
とおりである。
The present invention will be described in detail below based on drawings showing embodiments thereof.

第1図及び第2図に示すように、支柱(6) (6)間
に長さが数メートルのレール(3)を水平に渡しつつ固
定すると共に、内部に、レール(3)に浴って走行でき
る車輪(7) (7) (7)、その車輪を駆動すべき
電動モーター及び動力伝達機構、並びにその重輪の走行
距離をレール(3)の前後数メートルの一定距離間に自
動制御すると共にその一定距離を車輪が走行を完了して
一旦、眼による視標確認のために数秒間停止した後には
その車輪が再び自動的に反転走行を開始するようにする
自動制御機構(図示せず)を設けた視標保持具移動台車
(8)を、レール(3ンに浴って車輪(7) (7) 
(7)がモルレール式に走行自在となるように配しつつ
、レール(3)廻りに装備する一方で、その台車の上面
には、レール(3)の延長線上でその一方端縁部から少
し離れて立つヒト(4)に対面する位置及び方向に円板
状の視標保持具(2)をブラケット(9)を介して固設
すると共に、その視標保持具(2)の中心背部には回転
子の回転角度がパルス信号の数に比例するパルスモータ
−Qoを装備してその回転軸0jを視標保持具(2)の
中心前面へ突出させつつ指令に応じてその回転軸が視標
保持具(2)の前面に(=jされた正八角形の各頂点位
置マーク01)に相応した位置で正確に停止し得るよう
にし、かつ中央部をリング状に形成して前述の正八角形
の各頂点位置マーク(1υがそのリング内空間〜を通し
て透視できるようにして位置の確認が容易となるように
すると共に先端部には永久磁石片021を添着しだ視標
取付アーム(5)を視標保持具(2)の前面に平行状に
回動し得るようにし、更にランドルト環視標(1)が前
面に付されかつ前述の永久磁石片0のに吸引固着される
ように鉄製とされた小円板状の視標基板04)の後面を
磁石の吸引力を介してアーム(5)の先端部に着脱自在
に固着させてその視標基板04)の交換が自在となるよ
うにしつつ、そのランドルト環視標(1)をしてヒト(
4)と対面させるようにした装置である。
As shown in Figures 1 and 2, a rail (3) several meters long is fixed horizontally between the supports (6) (6), and a bath is placed inside the rail (3). (7) (7) (7), the electric motor and power transmission mechanism that drive the wheels, and the automatic control of the travel distance of the heavy wheels over a fixed distance of several meters in front and behind the rail (3). At the same time, an automatic control mechanism (not shown in the figure) allows the wheel to automatically start reversing again after the wheel has completed traveling that certain distance and once stopped for a few seconds to visually confirm the visual target. The visual target holder moving trolley (8) equipped with the wheels (7) is mounted on the rail (3).
(7) is arranged so that it can run freely in a mole rail type and is installed around the rail (3). A disc-shaped optotype holder (2) is fixed via a bracket (9) at a position and in a direction facing a person (4) standing apart, and a disc-shaped optotype holder (2) is fixed at the center back of the optotype holder (2). is equipped with a pulse motor Qo whose rotor rotation angle is proportional to the number of pulse signals, and projects its rotation axis 0j to the center front of the optotype holder (2), and in response to a command, the rotation axis is visible. The front surface of the mark holder (2) is designed so that it can be stopped accurately at a position corresponding to each vertex position mark 01 of the regular octagon marked by j, and the central part is formed into a ring shape to form the above-mentioned regular octagon. Each apex position mark (1υ) can be seen through the inner space of the ring so that the position can be easily confirmed, and a permanent magnet piece 021 is attached to the tip of the optotype attachment arm (5). It is made of iron so that it can be rotated parallel to the front surface of the optotype holder (2), and the Landolt ring optotype (1) is attached to the front surface and is attracted and fixed to the above-mentioned permanent magnet piece 0. The rear surface of the small disk-shaped optotype substrate 04) is removably fixed to the tip of the arm (5) through the attraction force of a magnet, so that the optotype substrate 04) can be replaced at will. , using the Landolt ring target (1), humans (
4).

以」二のような装置は、そのレール(3)の延長線上の
レールの一方端縁部から少し離れた位置にヒト(4)を
立たせ”たうえで、前述の自動制御機構を介して車輪(
7) (7) (7)を駆動させつつ視標保持具移動台
車(8)をしてレール(3)に沿って前後数メートルの
一定距離間、比較的ゆっくりした速度で往復動を繰返え
させるようにすれば、その往復動に伴って第1図実線矢
印のごとくランドルト環視標(1)も同様に往復動をし
、それに応じてヒト(4)にそのランドルトi視標(1
)を追いつつ注視させるようにすると、第5図(実線矢
印は視線を示す)に示すようにそのヒトの眼シυは眼球
内部の毛様体筋の収縮、弛緩による水晶体の厚みを変化
させる調節作用を繰返すと共に眼球外部の筋の中の内直
筋と外直筋を働かせて両眼の視線を輻奏(内よせ)させ
たり胃散(外よせ)させたりする運動も繰返すことにな
って、自然に眼球内外の筋を強化或いは正常化する訓練
が行われるようになって仮性近視とか神経性の斜視など
の治(tj i#l+練が甚だ効果的に行えるようにな
る。
The above-mentioned device requires a person (4) to stand on the extension line of the rail (3) at a position slightly away from one end edge of the rail, and then control the wheels via the automatic control mechanism described above. (
7) While driving (7) (7), the target holder moving trolley (8) repeats reciprocating motion at a relatively slow speed along the rail (3) for a fixed distance of several meters back and forth. If the Landolt ring target (1) is made to move back and forth, the Landolt ring target (1) will also move back and forth as shown by the solid line arrow in Figure 1, and accordingly the Landolt i target (1) will be moved back and forth to the human (4).
), as shown in Figure 5 (solid arrows indicate the line of sight), the human eye changes the thickness of the crystalline lens due to the contraction and relaxation of the ciliary muscle inside the eyeball. In addition to repeating the accommodation action, we also have to repeat exercises that activate the medial and lateral rectus muscles, which are the muscles outside the eyeballs, to make the gaze of both eyes radiate (turn inwards) or dilate (turn outwards). , training to naturally strengthen or normalize the muscles inside and outside the eyeball will be performed, making it possible to treat pseudomyopia and nervous strabismus (tj i #l + training) very effectively.

壕だランドルト環視標(1)は、パルスモータ−aoを
駆動して視標取付アーム(5)を45″づつ回転させる
ことによって視標保持具(2)の前面を公転しつつ前述
の正八角形の各頂点位置マーク(II)上に順次正確に
停止することができるので環の切目のある方向を自在に
変化させてヒトにその切目を注視させることができ、倉
入りに視力回復訓練を行うにも便利となる。勿論、前述
したように視標(1)の付された視標基板(14珀体が
アーム(5)先端部に磁力を介して着脱自在であるので
視標(1)を他のサイズのものに取換えるなり、まだ視
標(1)の環の切目のある方向を変更したりするコトカ
パルスモーターuQの駆動によらずとも可能であること
はいうまでもない。また視標取付アーム(5)を第3図
に示すように複数に分岐したものとすることによってそ
の各先端部に夫々視標(1)を設けるようにして複数の
ヒトに同時に視力回復訓練を施し得るようにしてもよい
。この場合は但し視標(1)を公転させたときに自分の
注視すべき視標が他人のそれと混同しないように視標取
付アーム(5)の各分岐部の前面に明確な識別用色彩O
すを伺しておくのがよい。更にその視標数句アーム(5
)は第3図に示すように或いは第1図のもののように文
字通りに腕木状になったものでなくて円板状のものでも
よいことはいうまでもない。視標はランドルト環でなく
て他の視力検査表にある文字とか図形などでもよいこと
はもとよりである。更にまだ、視標(1)は前述のよう
に視標取付アーム(5)に固着された視標基板04)上
に付したものに限定される必要はなく、視標取付アーム
(5)の前面に直接付されたものとか或いは視標保持具
(2)の前面に直接付されたものであってもよいことも
勿論である。なおまた、上記の装置ではパルスモータ−
00の動作を手動で代用してもよいことはもとよりであ
る。
The Landolt circular optotype (1) revolves around the front surface of the optotype holder (2) by driving the pulse motor ao and rotating the optotype mounting arm (5) by 45 inches, and forms the aforementioned regular octagon. Since it is possible to stop accurately on each vertex position mark (II) in sequence, the direction of the notch in the ring can be freely changed and the person can be made to focus on the notch, allowing for visual recovery training to be carried out in warehouses. Of course, as mentioned above, the optotype substrate (14) attached with the optotype (1) can be attached to and removed from the tip of the arm (5) via magnetic force, so the optotype (1) Needless to say, it is possible to change the direction of the notch in the ring of optotype (1) without using the drive of the Kotoka pulse motor uQ. By making the optotype attachment arm (5) branched into a plurality of parts as shown in Fig. 3, an optotype (1) is provided at each end of the arm (5), so that visual acuity recovery training can be performed on a plurality of people at the same time. In this case, however, when the optotype (1) revolves, the front of each branch of the optotype attachment arm (5) should be placed so that the optotype to be focused on is not confused with that of another person. Clear identification color O
It is a good idea to ask. Furthermore, the visual target number phrase arm (5
) need not be literally arm-like as shown in FIG. 3 or as shown in FIG. 1, but may instead be disc-shaped. It goes without saying that the optotype may be letters or figures found in other visual acuity test charts instead of the Landolt ring. Furthermore, the optotype (1) need not be limited to the one attached on the optotype substrate 04 fixed to the optotype mounting arm (5) as described above; Of course, it may be attached directly to the front surface or to the front surface of the optotype holder (2). Furthermore, the above device uses a pulse motor.
Of course, the operation of 00 may be substituted manually.

第4図に示すのは、第1図実施例の視標保持具において
、多数のランドルト環視標(1)をその保持具前面に固
定的に設けると共にパルスモータ−00の回転軸には視
標指示針0υを軸設してその針を適宜位置まで回転させ
たうえで停止させ、ヒトに注視すべきランドルト環視標
(1)を指定し得るようにしだものである。このような
構造のものでも前述同様の訓練効果を挙げ得ることはも
とよりである。なお、その指示針00で指示する代りに
各視標の固定位置に相応する位置に夫々点滅自在のラン
プ翰を設けたうえその中の特定のランプを点燈させてヒ
トに注視すべき視標を指示するようにしてもよい。
FIG. 4 shows the optotype holder of the embodiment in FIG. 1, in which a large number of Landolt ring optotypes (1) are fixedly provided on the front surface of the holder, and the optotype is mounted on the rotation axis of the pulse motor 00. An indicator needle 0υ is installed on the axis, and the needle is rotated to an appropriate position and then stopped, so that a person can specify the Landolt ring target (1) to be observed. It goes without saying that even with such a structure, the same training effect as described above can be achieved. In addition, instead of pointing with the indicator needle 00, a blinkable lamp is provided at a position corresponding to the fixed position of each optotype, and a specific lamp therein is turned on to indicate the optotype that the person should focus on. may also be instructed.

次に、第1図実施例において、ノクルスモータ−IIQ
の回転軸αjを視標保持具移動台車(8)の往復動に合
わせて自動的に各往路及び復路につきヒトが目で追える
速度で数回転させるよりなノくルスモーター叫の駆動、
停止機構を予めその移動台車(8)中に組込んでおくよ
うにすると、ランドルト環視標は第1図の実線矢印のご
とき往復動中に破線矢印のごとき公転運動を繰返すこと
になり、このことは、第6図(その実線矢印は視−を示
す)に示すようにその視標(1)を注視するヒトの眼1
21)に、前述の視標の往復動に伴う眼球内外部の筋に
よる眼の調節、輻奏及び開散作月〕のほかに、眼球外部
の筋の中の眼の調節、輻奏及び開数作用にはあずからな
い、上直筋、下直筋、下斜筋及び上斜筋を使っての視線
の旋回作用が繰返して行なわれることになり、従ってI
l艮球内外筋のすべてを運動させつつそれらの機能の強
化、正常化を図る訓練が容易に実施できるようになると
いう顕著な効果を奏することになるものである。なおこ
の場合、視標の公転角度の調整に不便であるが、・くル
スモーター(10を他種の電動モーターで代用可能なこ
とはもとよりである。
Next, in the embodiment shown in FIG.
The rotation axis αj of the sight target holder moving cart (8) is automatically rotated several times on each outbound and return trip at a speed that can be followed visually by a human.
If the stop mechanism is built into the moving cart (8) in advance, the Landolt ring target will repeat the orbital motion as shown by the dashed arrow while reciprocating as shown by the solid arrow in Figure 1. is the human eye 1 gazing at the optotype (1) as shown in FIG. 6 (the solid line arrow indicates visual acuity).
21) In addition to the above-mentioned eye accommodation, convergence, and aperture caused by the muscles inside and outside the eyeball due to the reciprocating movement of the optotype, the eye accommodation, convergence, and aperture caused by the muscles outside the eyeball. The action of turning the gaze using the superior rectus, inferior rectus, inferior oblique, and superior oblique muscles, which is not involved in the numerical action, is performed repeatedly, and therefore the I
This has the remarkable effect of making it easier to carry out training that exercises all of the internal and external bulbar muscles while strengthening and normalizing their functions. In this case, although it is inconvenient to adjust the revolution angle of the optotype, it is of course possible to replace the Kurusu motor (10) with another type of electric motor.

そしてこの場合には、眼の神経を過度に使はせることが
ないように視標(1)の公転はその視標の往路と復路で
その方向を反対にしたり、まだその往路又は復路の夫々
について数回転程度に留めるようにすることが望ましく
、更に、ノ;ルスモータ−01の駆動、停止に台車(8
)内に組込捷れたマイクロコンピュータ−からの制御指
令を介して例えば、往路は視標(1)を丁度2公転なり
3公転なりさせてその公転後の視標(1)の視標保持具
(2)前面での位置を変化させないが、復路については
視標(1)を45°なり900なり (つまり正八角形
の1頂点分なり2頂点分なり)その公転角度を進めるよ
うにしてランドルトm視標のνJ目位置(方向)を一往
復動ごとに自動的に変化させるようにする手法などを適
宜採用してよい。更にこの場合、視標(1)の公転は余
り大きくない半径で行われるので、前述の第3図に示す
ように余り沢山の視標を視標保持具(2)の前面に設け
るのは夫々の視標が他と混同し易くなる関係上好ましく
なく、第1図に2点鎖線で示すように視標取付アーム(
5)をパルスモータ−の回転軸03の両側へ延びる直線
状のものとし、せいぜいその画先端部に1個づつの視標
を持たせた程度のものにするのが好ましい。なお、前述
の第4図に示すような視標指示針Qのを回転さ−せて特
定の注視視標を指定する形式の視標保持具(2)を持つ
ものはこの視標の公転のある場合の装置として使用し難
いのはいうまでもない。
In this case, in order to prevent the eye nerves from being overworked, the revolution of the optotype (1) may be reversed in the outward and return directions of the optotype; It is desirable to limit the number of rotations to about a few rotations.
), for example, on the outward journey, the optotype (1) is rotated exactly 2 or 3 times, and after the revolution, the optotype (1) is held. Tool (2) does not change its position on the front, but on the return trip, move the visual target (1) by 45 degrees or 900 degrees (that is, by one vertex or two vertices of a regular octagon) by advancing the orbital angle of Landolt. A method of automatically changing the νJ-th position (direction) of the m optotype every reciprocating movement may be adopted as appropriate. Furthermore, in this case, the revolution of the optotype (1) takes place at a radius that is not very large, so it is difficult to provide too many optotypes on the front surface of the optotype holder (2), as shown in FIG. 3 above. This is undesirable because the optotype of the optotype can be easily confused with other optotypes, and the optotype attachment arm (
It is preferable that 5) be a straight line extending to both sides of the rotation axis 03 of the pulse motor, with at most one optotype at each end of the image. In addition, those with an optotype holder (2) of the type shown in the above-mentioned FIG. Needless to say, this is difficult to use as a device in certain cases.

なお図面符号の00、Q7)及び08)は支柱の高さを
調節する螺子、配電並びに運動機構の制御盤、及び配電
線を示している。
Note that drawing symbols 00, Q7) and 08) indicate screws for adjusting the height of the support, a control panel for power distribution and movement mechanism, and power distribution lines.

以上に述べたごとく本発明の視力回復訓練装置は眼の水
晶体の厚みの調節機能に加えて眼の輻奏、開数機能も併
せて簡便に強化訓練することができ、またそれらに加え
て眼球内外のすべての筋を働かせての総合的眼筋強化訓
練を容易に実施することができるものであるために、仮
性近視などの治療には甚だ有効な手段を提供することに
なる。
As described above, the visual acuity recovery training device of the present invention can easily strengthen and train the convergence and numerical aperture functions of the eye in addition to the ability to adjust the thickness of the crystalline lens of the eye. Since it is possible to easily carry out comprehensive eye muscle strengthening training that works all internal and external muscles, it will provide an extremely effective means for treating pseudomyopia and the like.

【図面の簡単な説明】[Brief explanation of the drawing]

Claims (1)

【特許請求の範囲】 1ヒトと対面すべき視標(1)を、視標保持具(2)の
往復動を介してヒトの前方数メートルの距離間を往復動
させ得るようにしたことを特徴とする視力回復訓練装置 2ヒトと対面すべき視標(1)を、視標保持具(2)の
往復動を介してヒトの前方数メートルの距離間を往復動
させ得るようにすると共に、その往復動間に適宜の眼で
追える速度で公転させ得るようにしたことを特徴とする
視力回復訓練装置
[Scope of Claims] The present invention is capable of reciprocating a visual target (1) that is to face a person over a distance of several meters in front of the person through the reciprocating movement of a visual target holder (2). Characteristic visual acuity recovery training device 2 The optotype (1) to be faced with a person can be reciprocated over a distance of several meters in front of the person through the reciprocating movement of the optotype holder (2). , a visual acuity recovery training device characterized by being able to revolve at a speed that can be tracked with the appropriate eye during its reciprocating motion.
JP58237522A 1983-12-15 1983-12-15 Sight restoration exercise apparatus Granted JPS60129045A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58237522A JPS60129045A (en) 1983-12-15 1983-12-15 Sight restoration exercise apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58237522A JPS60129045A (en) 1983-12-15 1983-12-15 Sight restoration exercise apparatus

Publications (2)

Publication Number Publication Date
JPS60129045A true JPS60129045A (en) 1985-07-10
JPS6215227B2 JPS6215227B2 (en) 1987-04-06

Family

ID=17016570

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58237522A Granted JPS60129045A (en) 1983-12-15 1983-12-15 Sight restoration exercise apparatus

Country Status (1)

Country Link
JP (1) JPS60129045A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6237782U (en) * 1985-08-23 1987-03-06
JPS63176439U (en) * 1987-05-07 1988-11-16
JPH06339501A (en) * 1992-04-08 1994-12-13 Jiyuichikai:Kk Vision restoration apparatus
JP2009153658A (en) * 2007-12-26 2009-07-16 Hollywood Mirror:Kk Visual acuity training system and apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5231114A (en) * 1975-09-02 1977-03-09 Toray Ind Inc Method for automatically controlling tow take-off speed of conveyors
JPS5473493A (en) * 1977-11-22 1979-06-12 Yoshigorou Tezuka Device for improving* retrieving and training eyesight
JPS54110695A (en) * 1978-02-17 1979-08-30 Kitarou Yoguchi Device for training asymptotic curve pseudoovisual acuity

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5231114A (en) * 1975-09-02 1977-03-09 Toray Ind Inc Method for automatically controlling tow take-off speed of conveyors
JPS5473493A (en) * 1977-11-22 1979-06-12 Yoshigorou Tezuka Device for improving* retrieving and training eyesight
JPS54110695A (en) * 1978-02-17 1979-08-30 Kitarou Yoguchi Device for training asymptotic curve pseudoovisual acuity

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6237782U (en) * 1985-08-23 1987-03-06
JPH0338707Y2 (en) * 1985-08-23 1991-08-15
JPS63176439U (en) * 1987-05-07 1988-11-16
JPH06339501A (en) * 1992-04-08 1994-12-13 Jiyuichikai:Kk Vision restoration apparatus
JP2009153658A (en) * 2007-12-26 2009-07-16 Hollywood Mirror:Kk Visual acuity training system and apparatus

Also Published As

Publication number Publication date
JPS6215227B2 (en) 1987-04-06

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