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rare form of dichromacy characterized by a lowered sensitivity to blue light resulting in an inability to distinguish blue and yellow

rare form of dichromacy characterized by a lowered sensitivity to blue light resulting in an inability to distinguish blue and yellow

A variety of color blindness-otherwise known as violet blindness-due to deficiency or absence of one of the three fundamental color perceiving substances in the retina. Compare with protanopia and deuteranopia. [Gr.]