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': "All are causes of white-dot syndrome except: \nSelect and explain. \nA. Fuch's heterochromic uveitis, B. VKH syndrome, C. HIV retinopathy, D. Sympathetic ophthalmitis", 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. Sympathetic ophthalmitis', 'role': 'assistant'}]