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
Most common late post-op complication of cataract Surgery is 
Select and explain. 
A. Retinal detachment, B. Ballous keratopathy, C. Posterior capsular opacification, D. Cystoid Macular edema
C: Posterior capsular opacification
Answer: C: Posterior capsular opacification 
Explanation: Most common late post-op complication of cataract Surgery is posterior capsular opacification.