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
Besides its propeies of decreasing intraocular pressure, timolol is preferred in the treatment of glaucoma because it 
Select and explain. 
A. Produces no miosis, B. Possess membrane stabilizing activity, C. Increases outflow of aqueous humor, D. Is a selective beta-adrenoceptor blocker
A: Produces no miosis
Answer: A: Produces no miosis 
Explanation: Ans. is 'a' i.e., Produces no miosis Advantages of topical n-blockers (timolol) over miotics (pilocarpinel No change in pupil size (no miosis) - No fluctuation in I.O.T. No induced myopia - Convenient once/twice daily applications No ciliary spasm (no spasm of accomodation) - Few systemic side effects.