A rare case of bilateral acute retinal necrosis due to varicella zoster virus in a patient of Multiple myeloma

Clinically, ARN is characterized by anterior uveitis, vitritis, retinal necrosis beginning in the peripheral retina, and occlusive vasculitis involving the retina and choroid [1,2]. Onset is typically unilateral with visual loss, often with ocular or periocular discomfort. Sequential bilateral involvement occurs in up to one-third of cases, usually within 3 months, but may be delayed for several years. The diagnosis of ARN syndrome is based on a clinical examination and a characteristic fundoscopic appearance. Diagnostic vitrectomy or retinal biopsy may be indicated in some atypical cases.