Doctor insights on:
How Does Color Blindness Affect The Body
Loss of color vision: In the retina of your eye, there are rods (for seeing in the dark) and cones (for seeing color and fine detail). There are three types of cones, similar to the three primary colors, and the color blindness test checks subtle differences between shades to see if you are missing cones of one of the color types (usually red or green). But usually you are not aware of any problem seeing things. ...Read more
Minimal effect: If you are color deficient, you cannot distinguish certain colors but your basic acuity and field of vision are probably normal. All street signals are now made with filters that will not be confused by the color deficient. It is very unlikely that you will run into a problem in the usual driving situation in which your color dysfunction will cause a problem. ...Read more
Color confusion: The tests are designed usually with dots of color along the axis which a color deficient person might confuse them. So by lacking the ability to pick out certain colors, the number or figure will not stand out from the background of dots and so will not be recognized. Some tests are sophisticated enough to indicate which type of color blindness is present. ...Read more
Will being color blind affect my chances to get into nasa? I've wanted to be a nasa astronaut for as long as i can remember, but i recently was diagnosed with color blindness. Will this affect my eligibility for nasa?
Mostly inherited: The most common forms of color blindness are inherited. They are that way from birth. Less common is developmental such as advanced diabetic retinal disease which fades out color recognition. Retinal degeneration like retinitis pigmentosa lead to color blindness and there is a rare form of stroke which can cause cortical color blindness. ...Read moreSee 1 more doctor answer
Color plates: Standardized testing of color vision can be performed by your eye doctor using specific color plates. Blue-green blindness is very common and usually easy to over come. Many people lead normal lives and never realize that they are color blind. Specific forms may cause more problems. A thorough evaluation by your eye doctor can determine the specific type and offer suggestions about management. ...Read moreSee 1 more doctor answer
Genetics: Several genes are responsible for allowing our retinas' receptors to record the different colors we see. Occasionally, someone develops a mutation that prevents some of the colors to be recorded. This makes differentiating certain shades or colors difficult. ...Read moreSee 2 more doctor answers
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