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': 'A young adult male presented with sudden painless loss of vision. He recovered spontaneously within 3 months Most likely cause of his blindness is – \nSelect and explain. \nA. Central serous retinopathy, B. Macular hole, C. Myopic crescent, D. Vitreous haemorrhage', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Sudden painless loss of vision with full recovery within 4-12 weeks in a young male is characteristic of central serous retinopathy.', 'role': 'assistant'}]