This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of Cornea, Subject name: Ophthalmology
[{'content': 'Which of the following is not true regarding herpes zoster ophthalmicus: \nSelect and explain. \nA. Frontal nerve is most common nerve involved, B. Dendritic ulcers are seen, C. Punctate epithelial keratitis, D. Cranial nerves can also be involved', 'role': 'user'}, {'content': "Answer: B \nExplanation: Pseudodendritic and not dendritic ulcers are seen. Herpes zoster ophthalmicus Acute infection of Gasserian ganglion of 5th cranial nerve by VZV MC nerve involved Frontal nerve, most specific nerve involved: Nasociliary Can involve all pas of eye though they are strictly limited to one side of head Pseudodendritic ulcer: HZV & Acanthamoeba. Pseudodendrites don't have terminal bulbs as seen in dendritic ulcer and more peripheral. Ocular Features Follicular conjunctivitis & hemorrhagic conjunctivitis Punctate epithelial keratitis Nummular keratitis: Tiny granular deposits surrounded by stromal haze Disciform keratitis Dendritic ulcers are caused by Herpes Simplex Virus not HZV", 'role': 'assistant'}]