This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Unknown
[{'content': 'Left homonymous hemianopia is due to a lesion in: \nSelect and explain. \nA. Optic chiasma, B. Left optic radiation, C. Temporal lobe, D. Right optic tract', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans: d (Right optic tract) Ref: Kanski's Clinical Ophthalmology 6th edition and Harrison's 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", 'role': 'assistant'}]