This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Glaucoma, Subject name: Ophthalmology
[{'content': 'Triple surgery in glaucoma includes all of the following except \nSelect and explain. \nA. Trabeculectomy, B. PCIOL implantation, C. Inseion of drainage device, D. Extra capsular cataract extraction', 'role': 'user'}, {'content': 'Answer: C \nExplanation: (Refer: AK Khurana Comprehensive Ophthalmology, 6th edition, pg no. 253)Triple Procedure for Glaucoma:TRABECULECTOMYECCEPCIOL INSEION', 'role': 'assistant'}]