This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vitreous and retina, Subject name: Ophthalmology
Scleral buckling is used for treatment of- 
Select and explain. 
A. Cataract, B. Scleritis, C. Retinal detachment, D. Vitreous hemorrhage
C: Retinal detachment
Answer: C: Retinal detachment 
Explanation: In retinal detachment to maintain chorioretinal apposition, scleral buckling is done. Inward indentation of sclera to provide external tamponade (scleral buckling). Scleral buckling is achieved by inseing an explant (silicone sponge or solid silicone band) with the help of mattress type sutures applied in the sclera. Ref: khurana 5 th edition , page no.297