This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Primary Angle-Closure Glaucoma, Subject name: Ophthalmology
True about pilocarpine is - 
Select and explain. 
A. It acts by decreasing secretion from ciliary epithelium, B. Side effects include bitter taste and renal calculi, C. It is drug of choice for treatment of Angle closure Glaucoma, D. It is a hyperosmotic agent
C: It is drug of choice for treatment of Angle closure Glaucoma
Answer: C: It is drug of choice for treatment of Angle closure Glaucoma 
Explanation: Ans. is 'c' i.e., It is drug of choice for treatment of Angle closure Glaucoma Pilocarpine:o Class-cholinomimetic.o Mechanism of Action- increased Aqueous Outflow Due To Opening Of Trabecular Meshwork Due To Ciliary Muscle Contraction.o Systemic Side Effects- Sweating, Salivation, Urinary Frequency, Diarrhea, Bronchospasm. o Ocular Side Effects- Blurred Vision, Miosis, Accommodative Spasm, Browache. o Drug of Choice For Acute Congestive Glaucoma is pilocarpine.