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
A 60 year old male patient operated for cataract 6 months back now complains of floaters and sudden loss of vision. The diagnosis is – 
Select and explain. 
A. Vitreous hemorhage, B. Retinal detachment, C. Central retinal artery occlusion, D. Cystoid macular edema
B: Retinal detachment
Answer: B: Retinal detachment 
Explanation: Amongst the given options, retinal detachment and vitreous hemorrhage can cause floaters with sudden loss of vision. However, vitreous hemorrhage is not a late complication of cataract surgery.
Late complications ofcataract surgely are - cystoid macular oedema, retinal detachment, epithelial ingrowth, fibrous ingrowth, vitreous touch syndrome, after cataract.