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: Pharmacology
[{'content': 'Timolol is preferred in glaucoma over pilocarpine, because - \nSelect and explain. \nA. It is more effective than pilocarine, B. Enhances uveo-scleral outflow, C. Produces less ocular side effects, D. It has no contraindications', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Produces less ocular side effects Advantages of topical p-blockers (timolol) over miotics (pilocarpine) No change in pupil size (no miosis) o No fluctuation in I.O.T. No induced myopia o Convenient once/twice daily applications No ciliary spasm (no spasm of accomodation) o Few systemic side effects.", 'role': 'assistant'}]