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': 'Most common complication of ECCE ? \nSelect and explain. \nA. Retinal detachment, B. Opacification of posterior capsule, C. Vitreous haemorrhage, D. None', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. is \'b\' i.e., Opacification of posterior capsule "Opacification of the posterior capsule caused by proliferation of cells in capsular bag remains the most frequent complication of ECCE and IOL surgery". Vajpayee', 'role': 'assistant'}]