Poor color vision is a reduced ability to distinguish between certain colors. Although many people use the term "colorblind" to refer to the reduced ability to discriminate between colors, true colorblindness is a total lack of color vision, which is rare.
Poor color vision is usually inherited. Men are more likely to be born with poor color vision. Most people with poor color vision can't distinguish between certain shades of red and green. Less commonly, people with poor color vision can't distinguish between shades of blue and yellow.
Certain eye diseases and some medications also can cause poor color vision.
Feb. 13, 2014
- Color vision deficiency. American Optometric Association. http://www.aoa.org/patients-and-public/eye-and-vision-problems/glossary-of-eye-and-vision-conditions/color-deficiency. Accessed Sept. 17, 2013.
- Riordan-Eva P, et al. Vaughan & Asbury's General Ophthalmology. 18th ed. New York, N.Y.: The McGraw-Hill Companies; 2011. http://www.accessmedicine.com/resourceTOC.aspx?resourceID=720. Accessed Sept. 17, 2013.
- Ropper AH, et al. Adams & Victor's Principles of Neurology. 9th ed. New York, N.Y.: The McGraw-Hill Companies; 2009. http://www.accessmedicine.com/resourceTOC.aspx?resourceID=54. Accessed Sept. 17, 2013.
- Komaromy AM, et al. Gene therapy rescues cone function in congenital achromaptopsia. Human Molecular Genetics. 2010;19:2581.
You Are ... The Campaign for Mayo Clinic
Mayo Clinic is a not-for-profit organization. Make a difference today.