axons of the ganglion cells leave the eyeball as the optic
nerve. At the optic chiasma, the medial fibers of each eye cross
over to the opposite side. The fiber tracts formed are called optic
tracts. The optic tracts synapse with neurons in the lateral
geniculate nucleus of the thalamus, whose axons form the optic
radiation, terminating in the visual cortex of the occipital lobe
of the brain.