“Colorblind” is an exaggerated term handed down over time, referring to individuals who have abnormal color vision. About eight percent of males and less than one percent of females have faulty color perception from birth.
The retina at the back of the eye contains two types of cells responsible for vision, rods and cones. The rods are responsible for night vision and operate under dim light conditions. The cones are responsible for color vision and operate in daylight conditions. There are three types of cones: blue, green, and red, which act together to help us see a magnificent range of colors. An abnormal gene can cause the deletion of certain cones and results in a hereditary color vision abnormality.
Hereditary color vision abnormalities cannot be cured. It is impossible to restore to the eye those elements in the retina which nature did not provide at birth. Some acquired color vision detects may be helped, as with the surgical removal of a cataract.
This series of informative articles about your vision is presented by Family Eye Care at 6007 US 71 south of Coushatta. For more information or to schedule an appointment, call 318-702-2100
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