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': "Vitreous haemorrhage is seen in all except: \nSelect and explain. \nA. Coat's disease, B. Eales' disease, C. CRVO, D. CRAO", 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. CRAO', 'role': 'assistant'}]