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
Vitreous hemorrhage is caused commonly by: March 2013 (f) 
Select and explain. 
A. Retinal aery occlusion, B. Retinal vein occlusion, C. Retinitis pigmentosa, D. Retinoblastoma
B: Retinal vein occlusion
Answer: B: Retinal vein occlusion 
Explanation: Ans. B i.e. Retinal vein occlusion