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': "Dalen Fuch's nodules are found in: \nSelect and explain. \nA. Superficial keratitis, B. Sympathetic opthalmitis, C. Vernal catarrh, D. Trachoma", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Sympathetic opthalmitis', 'role': 'assistant'}]