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': 'Treatment of choice in acute congestive glaucoma \nSelect and explain. \nA. Pilocarpine, B. Laser iridotomy, C. Timolol, D. Trabeculoplasty', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Laser iridotomy In acute congestive glaucoma stage of primary angle closure glaucoma the fellow eye require prophylactic peripheral iridotomy or surgical iridectomy Q (as PACG is usually a B/L disease and the fellow eye is in latent, subacute or intermittent stage).', 'role': 'assistant'}]