Color Blindness Summary 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. National Eye Institute Specifics Achromatopsia American Association for Pediatric Ophthalmology and Strabismus Find an Expert American Academy of Ophthalmology American Academy of Ophthalmology American Optometric Association American Optometric Association National Eye Institute National Eye Institute Videos and Tutorials Ask a Scientist: What Is Colorblindness? National Eye Institute Clinical Trials ClinicalTrials.gov: Color Vision Defects National Institutes of Health Array Color blindness Color vision test Start Here Color Blindness American Academy of Ophthalmology Facts About Color Blindness National Eye Institute Poor Color Vision Mayo Foundation for Medical Education and Research Images Color Blindness Simulations National Weather Service Genetics Genetics Home Reference: achromatopsia National Library of Medicine Genetics Home Reference: color vision deficiency National Library of Medicine Genetics Home Reference: optic atrophy type 1 National Library of Medicine Journal Articles Color Blindness Statistics and Research Testing Children for Color Blindness American Academy of Ophthalmology Children What It’s Like to Be Color Blind Nemours Foundation
