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Eruption severity and characteristics in herpes zoster ophthalmicus: correlation with visual outcome, ocular complications, and postherpetic neuralgia

Introduction  Herpes zoster ophthalmicus (HZO) is characterized by a typical vesicular eruption affecting the distribution of the ophthalmic division of the trigeminal nerve which can be of varying severity. The correlation of eruption severity and ocular involvement and subsequent visual loss is still to be established. In this prospective longitudinal study we evaluated the correlation of eruption severity with ocular complications, visual outcome and postherpetic neuralgia.