This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Conjunctiva, Subject name: Ophthalmology
[{'content': "Hutchinson's rule is related to \nSelect and explain. \nA. Herpes simplex keratitis, B. Mycotic keratitis, C. Herpes zoster Ophthalmicus, D. Vernal keratitis", 'role': 'user'}, {'content': "Answer: C \nExplanation: (Refer: AK Khurana Comprehensive Ophthalmology, 6th edition, pg no. 110, 166) *Hutchinson's rule:- In herpes zoster ophthalmicus, the involvement of the tip of the nose, supplied by external nasal nerve (a terminal branch of nasociliary nerve), signifies increase the risk of ocular involvement (uveitis).", 'role': 'assistant'}]