Abstract: Herpes zoster ophthalmicus (HZO) is a disease which occurs when the ophthalmic division of the trigeminal nerve is impaired as a result of reactivation of the varicella-zoster virus. Ophthalmic involvement has been considered the most important and potentially serious of all sites of Herpes Zoster virus. Objective of thispresent case study was to understand the modes of presentation and manifestations (ocular and extraocular) of HZO.This case study was conducted in the Outpatient Department of Ophthalmology at Indira Gandhi Medical College, Shimla (Himachal Pradesh). The Patient diagnosed with HZO was underwent a comprehensive ocular and extraocularexamination. The ocular manifestations of HZO in the Patient was acute vesicular, dermatomal ,painful, unilateral skin rash, hyperesthesia over his left forehead skin, Hutchinson sign present,Conjunctivitis in left eye with no exudates or obvious corneal scarring , Superficial punctate keratitis, stromal keratitis,Visual acuity Right eye-6/12, Left eye -6/18, IOP digitally normal bilaterally, Fundus cannot be assessed (CNBA) in the left affectedeye, normal ocular movements in all planes with no diplopia, normal direct and consensual pupillary reflexes. Patient was medically treated with antiviral, antibiotic, cycloplegic and other supportive drugs and followed up.