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': 'Synchysis refers to: \nSelect and explain. \nA. Liquefaction of the vitreous, B. Black spots in front of the eyes, C. Collapse of the vitreous, D. Detachment of the vitreous', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. Liquefaction of the vitreous', 'role': 'assistant'}]