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': 'Pain in absolute glaucoma is best relieved by: March 2004 \nSelect and explain. \nA. Retrobulbar injection of alcohol, B. Analgesics, C. Trabeculectomy, D. Miotics', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A i.e. Retrobulbar injection of steroid', 'role': 'assistant'}]