Achromatopsia, or rod monochromatic, is rare and causes color vision deficiency with all three cone types and issues ... that affect the eyes or optic nerve. Healthline has strict sourcing ...

The eye perceives color with a specific type of photoreceptor cell in the retina called a cone. (Photoreceptors are the cells that detect light; rods are the other type ... that affect the retina or ...

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