This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neuro-ophthalmology, Subject name: Ophthalmology
[{'content': 'Lesion of right optic tract will leads to - \nSelect and explain. \nA. Bitemporal hemianopia, B. Right homonymus hemianopia, C. Left homonymous hemianopia, D. Binasal hemianopia', 'role': 'user'}, {'content': "Answer: C \nExplanation: Left homonymous hemianopia. Lesions of optic tract. These are characterised by incongruous homonymous hemianopia associated with contralateral hemianopic pupillary reaction (Wernicke's reaction). These lesions usually lead to paial descending optic atrophy and may be associated with contralateral third nerve paralysis and ipsilateral hemiplegia. Common causes of optic tract lesions are syphilitic meningitis or gumma, tuberculosis and tumours of optic thalamus and aneurysms of superior cerebellar or posterior cerebral aeries. Ref:AK Khurana 4thE pg 290", 'role': 'assistant'}]