What can someone who is blind from damage to both visual cortices still do with their eyes? · Grey Matter

The pupils still react to light, because that reflex runs through the midbrain and never needs the cortex, and the eyes themselves are healthy.

What can someone who is blind from damage to both visual cortices still do with their eyes?

The pupils still react to light, because that reflex runs through the midbrain and never needs the cortex, and the eyes themselves are healthy. Some patients show blindsight: they report seeing nothing, yet point to a light or detect movement in the blind field above chance, through pathways that reach higher visual areas through the superior colliculus and the thalamus without passing V1. Others, in Anton syndrome, deny being blind at all and describe surroundings they cannot see, a failure of awareness added to the loss of vision.