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A member asked:
Is it possible to know if someone is color blind by just looking at them?
3 doctors weighed in across 2 answers
No: Color blindness is not due to a physical defect.
Answered 12/26/2012
5.4k views
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No: Color deficiency is an internal perception of the person with the problem. The external appearance of the face and eyes will not clue you to that deficiency.
Answered 1/23/2015
3.3k views
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