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A member asked:
Could dehydration cause you to have temporary color blindness?
A doctor has provided 1 answer
Too much sun?: The eyes have visual pigment that responds to color. Some are born with defective pigment and can not detect red or green. More common the pigment is bleached out due to too much exposure to light - especially sunlight. If you have been exercising too much in the bright sun you may become dehydrated and also find it difficult to see colors. Cooling off, liquids, rest, and dim light are needed.
Answered 10/3/2016
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