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': 'Pilocarpine in eye causes - \nSelect and explain. \nA. Active miosis, B. Active mydriasis, C. Passive miosis, D. Passive mydriasis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans: A. Active miosis(Ref: KDT 7h/e p\' 114 & 6th/e p 200)Miosis (constriction of PuPil)Parasympathomimelic (muscarinic) drugs:By stimulating the contraction of circular muscles (pupillary sphincter).As miosis is due to active contraction of muscle - Called "Active miosis".', 'role': 'assistant'}]