Ishihara Color Blindness Test 1.5.2.0
Free Version
Publisher Description
Ishihara Color Blindness Test - Red-green color deficiencies test
The Ishihara test is a color perception test for red-green color deficiencies, the first in a class of successful color vision tests called pseudo-isochromatic plates. It was named after its designer, Dr. Shinobu Ishihara, a professor at the University of Tokyo, who first published his tests in 1917.
The test consists of a number of colored plates, called Ishihara plates, each of which contains a circle of dots appearing randomized in color and size. Within the pattern are dots which form a number or shape clearly visible to those with normal color vision, and invisible, or difficult to see, to those with a red-green color vision defect. Other plates are intentionally designed to reveal numbers only to those with a red/green color vision deficiency, and be invisible to those with normal red/green color vision. The full test consists of 38 plates, but the existence of a severe deficiency is usually apparent after only a few plates. There is also an Ishihara test consisting 10, 14 or 24 test plates.
The plates make up several different test designs:
* Demonstration plate (plate number one, typically the numeral "12"); designed to be visible by all persons, whether normal or color vision deficient. For demonstration purposes only, and usually not considered in making a score for screening purposes.
* Transformation plates: individuals with color vision defect should see a different figure from individuals with normal color vision.
* Vanishing plates: only individuals with normal color vision could recognize the figure.
* Hidden digit plates: only individuals with color vision defect could recognize the figure.
* Diagnostic plates: intended to determine the type of color vision defect (protanopia or deuteranopia) and the severity of it.
About Ishihara Color Blindness Test
Ishihara Color Blindness Test is a free app for Android published in the Health & Nutrition list of apps, part of Home & Hobby.
The company that develops Ishihara Color Blindness Test is SoftInfoSystems. The latest version released by its developer is 1.5.2.0.
To install Ishihara Color Blindness Test on your Android device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2019-02-24 and was downloaded 1 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Ishihara Color Blindness Test as malware as malware if the download link to com.softinfosysru.ishiharacolorblindnesstest is broken.
How to install Ishihara Color Blindness Test on your Android device:
- Click on the Continue To App button on our website. This will redirect you to Google Play.
- Once the Ishihara Color Blindness Test is shown in the Google Play listing of your Android device, you can start its download and installation. Tap on the Install button located below the search bar and to the right of the app icon.
- A pop-up window with the permissions required by Ishihara Color Blindness Test will be shown. Click on Accept to continue the process.
- Ishihara Color Blindness Test will be downloaded onto your device, displaying a progress. Once the download completes, the installation will start and you'll get a notification after the installation is finished.
