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': "A lesion of the optic radiation involving the Meyer's loop causes - \nSelect and explain. \nA. Homonymus hemianiopia, B. Superior quadrantanopia, C. Inferior quadrantanopia, D. Central scotoma.", 'role': 'user'}, {'content': "Answer: B \nExplanation: Meyer's loops are the inferior most fibres of optic radiation. Damage to inferior fibres cause superior quadrantanopia.", 'role': 'assistant'}]