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Optic neuropathy preceding acute retinal necrosis in acquired immunodeficiency syndrome
S M Friedlander1, F M Rahhal, L Ericson
1Department of Pathology, University of California, San Diego, La Jolla, USA.
Objective:
To describe the clinical course of varicella-zoster optic neuropathy preceding acute retinal necrosis in patients with acquired immunodeficiency syndrome.
Design:
Case series.
Setting:
Two tertiary care centers in San Diego, Calif, and London, England.
Patients:
Three human immunodeficiency virus-positive men with previous cutaneous zoster infection, optic neuropathy, and necrotizing retinitis.
Results:
All patients had an episode of zoster dermatitis treated with acyclovir. Visual loss consistent with an optic neuropathy ensued, followed by typical herpetic retinitis. The cause of visual loss was not suspected to be varicella-zoster until after the retinitis occurred. Despite aggressive medical treatment, 4 of 6 eyes progressed to retinal detachment.
Conclusions:
Varicella-zoster may cause an optic neuropathy in patients with acquired immunodeficiency syndrome, especially in those with previous shingles. A high index of suspicion is necessary to establish the diagnosis and begin early antizoster treatment.