To report two cases of acute retinal necrosis following viral meningitis.

A 52-year-old woman who has had viral meningitis presented with visual loss of right eye. Slit-lamp examination showed conjunctival injection and inflammatory cells (2+) in the anterior chamber of the right eye. Funduscopic examination showed multiple yellow-whitish spots in the peripheral retina. Fluorescein fundus angiography showed early hypofluorescence and the late vascular leak in the peripheral retina. After the patient was diagnosed with Acute retinal necrosis (ARN), intravenous acyclovir (2,100 mg/m²/day) was administered. During the treatment period, the retinal detachment of the right eye was found, so the authors performed pars plana vitrectomy. After the surgery, new retinal lesions weren't observed in both eyes during follow-up. A 57-year-old man previously treated with possible viral meningitis presented with visual loss of his right eye. Funduscopic examination showed multiple yellow-whitish spots in the peripheral retina. Fluorescein fundus angiography showed the late vascular leak in the peripheral retina. In the systemic evaluation, Herpes simplex virus and Cytomegalovirus immunoglobulin G were detected. With the impression of ARN, intravenous acyclovir (2,100 mg/m²/day) was administered. No new retinal lesions were observed in both eyes during follow-up.

We report rare cases of ARN occurring after viral meningitis. Uveitis in patients with recent history of meningitis should be examined carefully under the suspicion of ARN.