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.
- Color Blindness Simulations (National Weather Service)
Statistics and Research
- Testing Children for Color Blindness (American Academy of Ophthalmology)
- ClinicalTrials.gov: Color Vision Defects (National Institutes of Health)
Journal Articles References and abstracts from MEDLINE/PubMed (National Library of Medicine)
- Article: Development of a Chromatic Pupillography Protocol for the First Gene...
- Article: The Clinical Phenotype of CNGA3-Related Achromatopsia: Pretreatment Characterization in Preparation...
- Article: Level of visual acuity necessary to avoid false-positives on the...
- Color Blindness -- see more articles