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': 'All of the following associated with extraocular muscles weakness except \nSelect and explain. \nA. Fisher syndrome, B. Myasthenia gravis, C. Eaton Lambe syndrome, D. Thyrotoxicosis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: In thyrotoxicosis, there is fibrosis of muscle. I. E restrictive myopathy Refer khurana 6/e p 420', 'role': 'assistant'}]