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 aerial occlusion', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Central serous retinopathy Ocular emergency are the diseases that causes sudden loss of vision. CRAO, RD & acute angle closure glaucoma all leads to sudden loss of vision. Central serous retinopathy (CSR) is a self-limiting disease of young or middle age males with type A personality.', 'role': 'assistant'}]