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 of the following are features of acute nongranulomatous iridocyclitis except: \nSelect and explain. \nA. Marked ciliary congestion, B. Numerous small keratic precipitates, C. Minimal aqueous flare, D. No iris nodules', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. Minimal aqueous flare', 'role': 'assistant'}]