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
[{'content': 'All of the following is related to cataract surgery, except \nSelect and explain. \nA. Lensectomy, B. Goniotomy, C. Phacoemulsification, D. IOL', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Goniotomy is the clone for glaucoma.\nExtracapsular cataract extraction (ECCE) by phacoemulsification with posterior chamber IOL is the procedure of choice for cataract.\nLensectomy is done in congenital cataract.', 'role': 'assistant'}]