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What percentage of people are colour blind?
8% of men
What percentage of people are colour blind?
About 8% of men and 0.5% of women have some form of colour vision deficiency. The most common type is red-green colour blindness (deuteranopia or protanopia). Because the gene is X-linked recessive, men are about 16 times more likely to be colour blind than women.
Source: Simunovic (2010), Clinical & Experimental Optometry