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A member asked:
When did we start knowing a lot about color blindness?
A doctor has provided 1 answer
Color blindness: Color blindness is rarely an inability to see all colors, but instead is a deficiency in distinguishing certain shades of color. John dalton first described color blindness in the late 1700's, and different types of color blindness have been described over the years. The first commonly used color vision test was created in 1917 (ishihara). Retinal cell and chromosome info came in the late 1900's.
Answered 3/26/2013
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5 doctors weighed in across 3 answers
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