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 following extra-capsular cataract extraction is: \nSelect and explain. \nA. After cataract, B. Corneal endothelial decompensation, C. Secondary glaucoma, D. Cystoid macular oedema', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. After cataract', 'role': 'assistant'}]