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': "Treatment for mild ptosis is ? \nSelect and explain. \nA. Fasanella servat operation, B. Levator resection, C. Frontalis sling operation, D. Everbusch's operation", 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Fasanella servat operation Fasanella-Servat operation. It is performed in cases having mild ptosis (1-5-2mm) and good levator function. In it, upper lid is eveed and the upper tarsal border along with its attached Muller's muscle and conjunctiva are resected.", 'role': 'assistant'}]