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A member asked:
Is there a type of color blindness where a person has trouble distinguishing shades of blue?
A doctor has provided 1 answer
Yes: There are two situations in which the blue sensitive cones do not work properly dichromacy is the most severe with complete loss of blue perception. Tritanopia (blue deficient: s cone absent) anomalous trichromacy tritanomaly (blue deficient: s cone defect) the most common color deficiency is red–green (overall) 7 to 10% of the male population.
Answered 10/23/2013
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