Lesions to the visual pathways

Lesions to the optic nerve cause

unilateral deficit in one of the visual fields

Lesions to optic chiasma cause

bitemporal hetronymous hemianopia

Lesions to optic tract, LGN, and optic radiations cause

homonymous hemianopia

Lesions to optic radiations (Meyer's loop) cause

homonymous hemianopia (quandrantanopia)

Lesions to rostral visual cortex cause

homonymous hemianopia with macular sparing

Black parts of visual

fields are blind