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': 'Which type of senile cataract is notorious for glaucoma formation – \nSelect and explain. \nA. Incipient cataract, B. Hypermature morgagnian cataract, C. Intumescent cataract, D. Nuclear cataract', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Both intumescent cataract and hypermature morgagnion cataract can cause glaucoma, although by different mechanism.\n\n\nIntumescent cataract → causes phacomorphic glaucoma due to swelling of lens.\nHypermature morgagnion cataract → Phacolytic glaucoma due to leakage of soluble lens protein.\n\n\nHowever, phacomorphic glaucoma is the most common type of lens-induced glaucoma (50-70%).\nTherefore, best answer here is intumescent cataract.', 'role': 'assistant'}]