Homonymous hemianopsia is associated with lesion at: (A) Visual cortex, (B) Optic radiation, (C) Optic tract, (D) Optic chiasma
Answer is C. (C) Optic tract > It is difficult to localize a postchiasmal lesion accurately, because injury anywhere in the optic tract, lateral geniculate body, optic radiations, or visual cortex can produce a homonymous hemianopia, i.e., a temporal hemifield defect in the contralateral eye and a matching nasal hemifield defect in the ipsilateral eye