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': "Fasanella Servat operation is specifically indicated in - \nSelect and explain. \nA. Congenital ptosis, B. Steroid induced ptosis, C. Myasthenia gravis, D. Horner's syndrome", 'role': 'user'}, {'content': "Answer: D \nExplanation: Fasanella servat procedure is indicated in ptosis due to Horner's syndrome & Frontalis suspension is indicated in Marcus Gunn jaw winking syndrome, blepharophimosis syndrome, total 3rd nerve palsy, aberrant regeneration of 3rd nerve.", 'role': 'assistant'}]