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': 'All are abnormality in lens shape except : \nSelect and explain. \nA. Spherophakia, B. Microphakia, C. Microspherophakia, D. Aphakia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Microphakia, spherophakia (microspherophakia) all are types of abnormal lens.\nMicrophakia – Abnormal smalleness of the lens of the eye.\nSpherophakia (microspherophakia) – in spherophakia the lens is amall and spherical\n(increase anterior and posterior curvature of lens) . Angle closure glaucoma occurs when the small round lens has blocked the flow of aqueous through the pupil.', 'role': 'assistant'}]