<prompt> Left homonymous hemianopia is due to a lesion in:Optic chiasmaLeft optic radiationTemporal lobeRight optic tract  <response>: Ans: d Right optic tract Ref: Kanskis Clinical Ophthalmology 6th edition and Harrisons Online Explanation: Visual field defect no Name Site of lesion 1 Monocular field defects Optic nerve 2 Binasal hemianopia lateral parts of optic chiasma 3 Bitemporal hemianopia Central part of optic chiasma 4 Homonymous hemoanopia, incongruous, macular involved Optic tract 5 Superior homonymous quadrantanopia Temporal lobe 6 Inferior homonymous quadrantanopia Parietal lobe 7 Homonymous hemianopia, congruous, macular sparing Occipital cortex 