[Research situation of acute retinal necrosis]

Acute retinal necrosis is an uncommon but devastating, potentially blinding ophthalmopathy characterized by acute uveitis, vitreitis, retinal arteritis and full-thickness retinal necrosis, frequently complicated by secondary retinal detachment and proliferative vitreoretinopathy in late stages. However, it usually cannot be diagnosed and treated promptly, with unfavorable prognosis for the lesions tend to a rapid circumferential progression in few days. This review summarizes the epidemiology, pathogenesis, clinical features, diagnosis, differential diagnosis and recent situation in the study of treatment of acute retinal necrosis.