original passage: In cerebral achromatopsia, a person cannot perceive colors even though the eyes are capable of distinguishing them. Some sources do not consider these to be true color blindness, because the failure is of perception, not of vision. They are forms of visual agnosia.
original sentence: In cerebral achromatopsia, a person cannot perceive colors even though the eyes are capable of distinguishing them.
sentence2: Would a person with cerebral achromatopsia be able to distinguish a ripe fruit from an unripe one without tasting it?
sentence1: In cerebral achromatopsia, a person cannot perceive colors even though the eyes are capable of distinguishing them. Some sources do not consider these to be true color blindness, because the failure is of perception, not of vision. They are forms of visual agnosia.