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
Vitrectomy is done in case of vitreous hemorrhage if not absorbed within 
Select and explain. 
A. 1 month, B. 2 months, C. 3 months, D. 12 months
C: 3 months
Answer: C: 3 months 
Explanation: Vitrectomy is indicated if vitreous haemorrhage does not absorb in 3 months.