Herpes Zoster Ophthalmicus.

Signs and symptoms: Herpes zoster ophthalmicus (HZO) typically presents with nondescript facial pain, fever and general malaise. About four days after onset, a vesicular skin rash appears along the distribution of the fifth cranial nerve, characteristically respecting the vertical midline. The vesicles will discharge fluid and begin to scab over after about one week. Pain is extreme during the inflammatory stage.

Ocular involvement may include follicular conjunctivitis, epithelial and/or interstitial keratitis, dendritic keratitis, uveitis, scleritis or episcleritis, chorioretinitis, optic neuropathy, and even neurogenic motility disorders (especially fourth cranial …