This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Lacrimal Apparatus and Eyelid Disorders, Subject name: Ophthalmology
[{'content': "Surgery of choice in patient with congenital ptosis with good levator action is \nSelect and explain. \nA. LPS resection, B. Muller's Resection, C. Fascia lata sling surgery, D. Fasanella Servat operation", 'role': 'user'}, {'content': 'Answer: D \nExplanation: SURGICAL CORRECTION * Levator resection : very commonly done in congenital ptosis with moderate and severe grades of ptosis * Fascia lata sling surgery : done in patients having severe ptosis with no levator function. In Marcus Gunn Jaw Winking Ptosis , LPS excision is combined with frontalis sling operation and in Congenital Ptosis with bad elevation we do Sling surgery. * Fasanella Servat operation : - done in patients having mild ptosis with good levator function - it is also done in Horners syndrome *Avoid ptosis surgery in Myasthenia Gravis and Paial third nerve palsy induced ptosis as they usually resolve with medical treatment and with time', 'role': 'assistant'}]