This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Retina, Subject name: Ophthalmology
[{'content': 'All are ocular emergencies except \nSelect and explain. \nA. Diabetic Retinopathy, B. Bacterial endophthalmitis, C. Sympathetic ophthalmitis, D. Eye injury', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Endopthalmitis, Eye injury, Sympathetic opthalmitis all present as ocular emergency. Diabetic retinopathy does not present as ocular emegency.', 'role': 'assistant'}]