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': 'All are ocular emergencies except - \nSelect and explain. \nA. Angle closure glaucoma, B. Central serous retinopathy, C. Retinal detachment, D. Central retinal arterial occlusion', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Central serous retinopathy (CSR) is typically a self limiting disease and undergoes spontaneous resolution in 80 to 90% of cases.\n\nOcular emergencies \n\nClosed - angle glaucoma\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0\nRetinal detachment\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0 \xa0 \xa0 \xa0\xa0\nForeign body\xa0\xa0\xa0\xa0\xa0\nOrbital fractures\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\nCorneal abrasions, lacerations, ulcers\xa0\xa0\xa0\nRuptured globe\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\nCRAO\xa0\xa0\xa0\nChemical burns\nRetrobulbar hematoma', 'role': 'assistant'}]