URL of this page: https://www.nlm.nih.gov/medlineplus/colorblindness.html

Color Blindness


Most of us see our world in color. We enjoy looking at a lush green lawn or a red rose in full bloom. If you have a color vision defect, you may see these colors differently than most people.

There are three main kinds of color vision defects. Red-green color vision defects are the most common. This type occurs in men more than in women. The other major types are blue-yellow color vision defects and a complete absence of color vision.

Most of the time, color blindness is genetic. There is no treatment, but most people adjust and the condition doesn't limit their activities.

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Specific Conditions

  • Achromatopsia (American Association for Pediatric Ophthalmology and Strabismus) Available in Spanish




Statistics and Research

Clinical Trials


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