Acute Retinal Necrosis Syndrome

Acute retinal necrosis (ARN) is a necrotizing retinitis due to herpesvirus (HSV/VZV), presenting with peripheral confluent white retinitis, retinal vasculitis, vitritis, and high risk of retinal detachment. It may occur in immunocompetent or immunocompromised patients. Treatment: urgent systemic acyclovir/intravitreal antiviral; prophylactic laser barricade; vitrectomy for retinal detachment; long-term suppressive antivirals.

Common Symptoms

Blurred vision/floaters; peripheral confluent white retinitis; vasculitis/vitritis; high detachment risk

Causes and Pathogenesis

HSV/VZV infects the peripheral retina, causing confluent necrosis and vasculitis.

Treatment

Urgent systemic/intravitreal antivirals; laser barricade; vitrectomy if detachment; suppressive therapy

Preventive Measures

Urgent antiviral; long-term suppression.

Department to Visit

It is recommended to visit the Ophthalmology department; an appointment can be booked on this platform before the visit.

Warm reminder: The above information is for health science reference only and cannot replace professional medical diagnosis. If you have related symptoms, please seek medical attention at a regular hospital promptly.