<prompt> Site of lesion in Bitemporal hemianopia is ?Optic nerveOptic tractOptic chiasmaOptic radiation  <response>: Ans. is c i.e., Optic chiasma Characteristic defect of central chiasmatic lesion is bitemporal hemianopia. This question has been asked in almost all the examinations. Site oflesion Visual field defect Optic nerveOptic chiasmaOptic tractLateral geniculate bodYOptic radiation TotalOptic radiation lower fibres temporal lobeOptic radiation upper fibres parietal lobeVisual coex anterior occipital coexOccipital coex tiP BlindnessBitemporal hemianoPiaIncongruent homonymous hemianopiaHomonymous hemianoPiaHomonymous hemianopia, sornetimes with macular sparinqHomonymous upper quadrantanoPiaHomonymous I ower quadrantanoPiaffooornos hemianopia with macular sparingHomonymous macular defect 