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.
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: Color vision abnormalities in type II diabetes: Sankara Nethralaya Diabetic...
- Article: Illuminations that improve color discrimination ability of people with red-green...
- Article: Development and validation of a questionnaire assessing the quality of...
- Color Blindness -- see more articles