<prompt> Hutchinsons rule is related to ?Herpes simplex keratitisMycotic keratitisHerpes zoster ophthalmicusNone  <response>: Ans. is c i.e., Herpes zoster ophthalmicus Hutchinsons rule : - In herpes zoster ophthalmicus, involvement of the tip of nose, supplied by external nasal nerve a terminal branch of nasociliary nerve, signifies increase risk of ocular involvement uveitis. 