This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Strabismus, Subject name: Ophthalmology
Lost muscle in squint surgery is 
Select and explain. 
A. MR, B. LR, C. SR, D. SO
A: MR
Answer: A: MR 
Explanation: Ans. (a) MRwww.cybersight.orgwww.eyewiki.aao.orgRef: , , Pubmed, PMID: 11705143)Lost or slipped muscle is usually MR. It is known as the Surgeon's Graveyard.