This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Ophthalmology
[{'content': 'Latanoprost used topically in glaucoma primarily acts by \nSelect and explain. \nA. Decreasing aqueous humor forma on, B. Increasing uveo scleral outflow, C. Releasing papillary block, D. Increasing trabecular outflow', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Latanoprost - (0.0005%) synthetic drug which is an ester analogue of prostaglandin F2 alpha , It is only drug which exclusively acts by increasing uveo scleral outflow and by causing reduction in episcleral venous pressure. Side effects - conjunctival hyperaemia, foreign body sensation and increased pigmentation of the iris.', 'role': 'assistant'}]