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
Drug of choice for iridocyclitis is: 
Select and explain. 
A. Atropine, B. Streoid, C. Pilocarpine, D. Timolol
A: Atropine
Answer: A: Atropine 
Explanation: Atropine