# 3D Eyesight Recovery

> Stereogram exercises to improve eye muscle and brain visual perception. (iPhone/iPad app by koikoi.biz.)

- Source: https://appshunter.io/ios/app/3d-eyesight-recovery/id590039289 (this page in markdown: same URL + `.md`)
- Developer: [koikoi.biz](https://appshunter.io/developer/444917150)
- Category: Lifestyle, Medical
- Price: $2.99
- Rating: 5.00/5 from 9 App Store ratings · 54 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 227 MB
- Languages: American English, Japanese
- Released: 2013-01-05
- Data updated: 2026-09-09
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/3d-eyesight-recovery/id590039289/reviews.md

## What is 3D Eyesight Recovery?

￭ App Description 
This app uses stereograms to help improve eyesight. 

This application is the 2nd phase of "3D Sight Recover" which made a smashing success. 

There are two functions that affect eyesight—eye muscle function and brain function. 
Eye muscle function controls what we generally call eyesight, and it is the ability of our eyes to focus on what we see. The brain function that affects eyesight is the ability of our brain to recognize and visualize what we see physically. In order to improve eyesight, you need to not only strengthen the eye muscles, but also increase the ability of your brain to perceive visual images. 

In 3D Eyesight Recovery, by looking at a 3D stereogram, 
- you can strengthen brain functions by focusing the eyes on a 3D image, 
- at the same time you can use eye muscles that you normally do not use, 
- and by switching from the walleyed method to the cross-eyed method, to opposite ways of seeing, you exercise the eyes. 
- Additionally, the stereograms make it fun to continue exercising the eyes. 

In other words, using the app in this way will give you the four benefits above at the same time. You will have fun while providing your eyes with good exercise. 

￭ Instructions for Use 
Look at the stereogram using the walleyed method and the cross-eyed method, one after the other. Use this app regularly on a daily basis. 

￭ Walleyed Method (diverge) 
Instead of looking at the picture, focus on a point further ahead of the picture. If you continue to look far ahead, the two eyes you see in the upper part of the picture will look like four eyes, and then the two eyes on the inside will start to move closer together until they become one. If you move your line of vision to the picture, the flat picture will look three-dimensional. If this is your first time using a 3D stereogram, you may be surprised when this happens. It will be difficult at first, but once you get used to it, it will be easier, so do not give up. 
￭ Cross-eyed Method (converge) 
In this method, you look at the left side of the picture with your right eye and the right side with your left eye. Unlike the walleyed method, you adjust the focus to a point closer to you than the picture. Place a finger between your eyes and the picture and look at your finger. The picture is behind the finger so your eyes will naturally see the opposite side of the picture, so maintain that line of vision and remove your finger. It requires some practice, but as you gradually adjust your focus, the picture will begin to appear three-dimensional. 

Looking at 3D stereograms is exercise, so your eyes will get tired. Please refrain from using this app for extended periods of time so as not to tire your eyes.

## Key features

- Stereogram-based eye exercises
- Strengthens eye muscles
- Improves brain visual recognition
- Walleyed viewing method
- Cross-eyed viewing method
- Fun and engaging eye training

## Recent user reviews (10 of 54)

All indexed reviews: https://appshunter.io/ios/app/3d-eyesight-recovery/id590039289/reviews.md

### 1/5 — なぜ？

*2025-08-16*

アプリを開いて見るやつを選択した途端にアプリが落ちる。日によって使える日と１度も使えない日がある。対応よろしくおねがいします

### 4/5 — Good for exercising eyes

*2023-01-26*

Lots of stereograms to practice with. A few really  good.  Many are mediocre. One issue when trying to set transition time there are no instructions what to enter and how to get out of the transition  time area. I was stuck there until  I pressed enter. Even though I entered a number the slide did not move automatically.

### 3/5 — 答えが複雑でいまいち

*2021-09-14*

1作目のほうが良かった。

### 5/5 — お知らせタイマーがあると

*2021-08-21*

朝、早めに職場に着いてコーヒー飲みながらやることが多いです。とても楽しく利用させていただいています。
ついつい忘れがちです。お知らせタイマーがあると便利なんですけどね。

### 5/5 — Really cool

*2021-05-23*

Is it strange that I get different 3-d images with the same stereo gram? For example the 1st one; I have seen it as a pyramid coming towards me, also as a sort of 3-d fish, and just recently as a pyramid going away from me. I find it odd I’m am getting a different answer every time.

### 3/5 — 視神経が…

*2020-09-03*

気持ちいいです。ズーンってきますね

### 5/5 — 楽しいです。

*2020-08-15*

目が良くなったかはわからないですが、ピントを合わせようとするのが楽しいです。おすすめです。

### 4/5 — タイマーとBGMが欲しいです

*2020-08-13*

タイマーとBGMが欲しいです。

### 4/5 — BGMが....。

*2020-01-12*

BGMが無くて残念。

### 2/5 — がっかり

*2019-11-10*

最初のバージョン、「3D視力回復」が良かったので、購入しました。ところが、バージョン1からいくつかの機能が削除されているため、使いづらくて仕方ないです。
•時間を計る機能がなくなった。
　→わざわざストップウォッチを開きに行かなくてはならなくなりました。
•前回使った絵柄の番号を表示する機能に不具合。
使った直後には番号が青く表示されていますが、
どういうわけか、次に開いた時には表示されなくなっています。
•BGMがなくなった。
いらないと言う方もいるのかもしれませんが、前バージョンでは音を消すこともできたので、選べるようにして欲しいです。

コストの削減のためなのかどうか、わかりませんが、有料である以上、新バージョンで機能を落とすのはやめてほしいです。

## Frequently asked questions about 3D Eyesight Recovery

### How does 3D Eyesight Recovery work?

3D Eyesight Recovery uses stereograms to provide eye exercises. By looking at these 3D images using the walleyed and cross-eyed methods, you can strengthen eye muscles and improve your brain's ability to perceive visual images.

### What are the viewing methods in 3D Eyesight Recovery?

The app utilizes two primary methods: the walleyed method, where you focus on a point further than the image to see it in 3D, and the cross-eyed method, where you focus on a closer point, causing your eyes to converge differently to perceive depth.

### Is 3D Eyesight Recovery suitable for all ages?

The app has an age rating of 4+, making it suitable for a wide range of users. However, it's recommended to avoid extended use to prevent eye fatigue.

### How often should I use 3D Eyesight Recovery?

It is recommended to use the app regularly on a daily basis for consistent eye exercise. However, please refrain from using it for extended periods to avoid tiring your eyes.

### What devices is 3D Eyesight Recovery available on?

3D Eyesight Recovery is available for iPhone, iPad, and iPod devices.

### How much does 3D Eyesight Recovery cost?

3D Eyesight Recovery is a paid app, priced at $2.99. There are no in-app purchases or advertisements.

### When was 3D Eyesight Recovery last updated?

The latest version of 3D Eyesight Recovery, 1.15, was released on August 24, 2021.

### What do users think of 3D Eyesight Recovery?

Based on the available data, 3D Eyesight Recovery has a perfect rating of 5.0 stars from 9 ratings, indicating a very positive user sentiment.

## Version history (last 5 releases)

### 1.15 — 2021-08-24

- Fixed so that the setting magnification of the Move function is saved even after closing the application.
- Fixed a minor bug.

### 1.14 — 2021-08-20

- Supported iOS14.
- Added images.
- Added BGM.
- Added timer.

### 1.12 — 2017-09-26

This app has been updated by Apple to display the Apple Watch app icon.

Fixed the following bugs.
- Screen becomes vertical in 3D game.
- iPad displays for iPhone images.

### 1.11 — 2017-08-03

- Supported iOS 10.
- Added images.

### 1.10 — 2013-04-18

- Added images.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-09.*