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': 'Corneal reflex is lost in the disease of: \nSelect and explain. \nA. Ophthalmic nerve, B. Ciliary ganglion, C. Supra orbital nerve, D. Motor nucleus of 5th cranial nerve', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. Ophthalmic nerve', 'role': 'assistant'}]