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Eye Exams - Color Vision Test

A color vision test checks your ability to distinguish between different colors.

This test can determine the following abnormalities:
  • 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)
  • Optic nerve difficulties

For more information visit MEDLINEplus
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