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': 'Treatment of Choice for prophylaxis of Right eye in case of primary open angle glaucoma of Left eye \nSelect and explain. \nA. Goniotony, B. Trabeculectomy, C. Laser trabeculoplasty, D. Seton Surgery', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Treatment of Choice for prophylaxis of healthy\xa0eye when follow eye has\xa0primary open angle glaucoma is\xa0laser trabeculoplasty.', 'role': 'assistant'}]