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': 'YAG laser is used in the treatment of: \nSelect and explain. \nA. Retinal detachment, B. Diabetic retinopathy, C. Open-angle glaucoma, D. After cataract', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. After cataract', 'role': 'assistant'}]