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': 'Diabetes mellitus can cause the following in the eye except: \nSelect and explain. \nA. Cataract, B. Retinopathy, C. Anterior ischemic neuropathy, D. Neuroparalytic keratitis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. Neuroparalytic keratitis', 'role': 'assistant'}]