Progressive outer retinal necrosis (PORN) syndrome is a recognized var
iant of necrotizing herpetic retinopathy, usually with minimal anterio
r seg ment inflammation. A patient was examined who had PORN, rhegmato
genous retinal detachment, and extensive iris atrophy. Therapy with in
travenous acyclovir arrested progression of the retinitis. The presenc
e of iris atrophy strongly suggests a varicella tester etiology for th
is case of PORN.