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': "Black floaters in a diabetic patient indicate: \nSelect and explain. \nA. Vitreous H'ge, B. Maculopathy, C. Vitreous infarction, D. Post vitreous detachment", 'role': 'user'}, {'content': "Answer: A \nExplanation: A i.e. Vitreous H'ge Vitreous haemorrhage is most common cause of black floaters in diabetic patient. Q Maculopathy is most common cause of visual impairment of diabetic patient. Q Microaneurysm is the earliest detectable sign of diabetic retinopathy Q Duration is the most impoant and best predictor Q of diabetic retinopathy", 'role': 'assistant'}]