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Color vision test


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Color vision test

Alternative Names:

Eye test - color; Vision test - color; Ishihara color vision test
Normal Values:

Normally, you will be able to distinguish all symbols.


What abnormal results mean:

This test can determine the following color vision problems:

  • Protanopia (difficulty distinguishing between blue/green and red/green)
  • Deuteranopia (difficulty distinguishing between red/purple and green/purple)
  • Tritanopia (difficulty distinguishing between yellow/green and blue/green)
  • Achromatopsia (complete color blindness, seeing only shades of gray)
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