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
The operation of plication of inferior lid retractors is indicated in - 
Select and explain. 
A. Senile ectropion, B. Senile entropion, C. Cicatricial entropion, D. Paralytic entropion
B: Senile entropion
Answer: B: Senile entropion 
Explanation: Plication of inferior lid retractors is done to strengthen them. This operation is performed in severe cases of senile entropion or when recurrence occurs after other procedures. It is known as the Jones, Reeh and Wobig operation.