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: Ophthalmology
[{'content': "Wernicke's hemianopic reaction is due to lesions at the level of \nSelect and explain. \nA. Optic tract, B. Optic chiasma, C. Optic radiations, D. LGB", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Lesions of optic tract.\nI/L direct and C/L consensual light reflexes are absent.', 'role': 'assistant'}]