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What is Most common nerve involved in herpes zoster ophthalmicus is and explain in detail?
HZO is an acute infection of Gasserian ganglion of the fifth cranial nerve by the varicella-zoster virus (VZV). VZV is a DNA virus and produces acidophilic intranuclear inclusion bodies. It is neurotropic in nature. In HZO , frontal nerve is more frequently affected than the lacrimal and nasociliary nerves. Ref: khurana 6 th edition page no.104