This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Ophthalmology
YAG laser capsulotomy is used in- 
Select and explain. 
A. Retinal detachment, B. Diabetes, C. After-cataract, D. Refractive errors
C: After-cataract
Answer: C: After-cataract 
Explanation: *After cataract is treated by Nd-YAG laser posterior capsulotomy. *YAG laser is used to create holes e.g. posterior capsulotomy,irototomy. Ref: Khurana 7th/e p.212