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': 'Painless loss of vision is seen in all except: \nSelect and explain. \nA. Pappilodema, B. Pappilitis, C. CRAO, D. Angle closure glaucoma', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Angle closure glaucoma', 'role': 'assistant'}]