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Color vision test - Results

Alternative Names

Eye test - color; Vision test - color; Ishihara color vision test

Normal Values:

Normally, you will be able to distinguish all colors.

What abnormal results mean:

This test can determine the following color vision problems:

  • Achromatopsia - complete color blindness, seeing only shades of gray
  • Deuteranopia - difficulty telling the difference between red/purple and green/purple
  • Protanopia - difficulty telling the difference between blue/green and red/green
  • Tritanopia - difficulty telling the difference between yellow/green and blue/green)
  • Reviewed last on: 1/21/2009
  • Paul B. Griggs, MD, Department of Ophthalmology, Virginia Mason Medical Center, Seattle, WA . Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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