total color blindness

what causes achromatopsia 

achromatopsia is caused by damage to the cerebral cortex whether that be hemorrhage 

or tumor growth achromatopsia is harmless and does not hurt the person or the eye

what is achromatopsia 

achromatopsia is total colourblindness  this means that someone with it can only see in shades of grey,white and black

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