This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of orbit, Lids and lacrimal apparatus, Subject name: Ophthalmology
[{'content': 'Treatment of congenital ptosis with poor elevation is- \nSelect and explain. \nA. Levator resection, B. Frontalis sling, C. FS operation, D. None of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Brow suspension operation , in this lid is anchored to frontalis muscle a sling .fascia lata or silicon rod can be used as sling. In this procedure, the eyelid is coupled to the frontalis muscle using either a fascial sling or a sling made of a synthetic material Ref: Ak khurana 6th edition', 'role': 'assistant'}]