Larry goes to the doctor complaining that he can't see the right side of the visual field with either eye. Where in the visual signal-processing pathway is Larry's problem occurring?

This condition is called hemianopia. It may be caused by lesions in the eye, optic nerve or cerebral cortex. Under this condition there is an injury to the Optical Tract, which leaves half of each corresponding retina on the same side of the lesion without innervation.

If the problem is in the cerebral cortex, the problem happens in the left hemisphere of the brain since this is the one who controls the entire right part of the body