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': 'Primary open-angle glaucoma is associated with all of the following except: \nSelect and explain. \nA. Diabetes mellitus, B. Myopia, C. Hypehyroidism, D. Pars planitis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. Pars planitis', 'role': 'assistant'}]