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
[{'content': 'The operation for plication of lower lid retractors is done for? \nSelect and explain. \nA. Senile ectropion, B. Senile entropion, C. Cicatrical entropion, D. Paralytic entropion', 'role': 'user'}, {'content': "Answer: B \nExplanation: Senile entropion REF: Parson's diseases of the eye 20th e p. 432 Tucking or plication of inferior lid retractors (jones, Reeh, Wobig procedure) and inveed house shaped lid operation (Bick's procedure) is done for involutional entropion.", 'role': 'assistant'}]