Viral retinitis: diagnosis and management in the era of biologic immunosuppression: A review.

Necrotising retinitis is a rare ocular infection that historically led to high rates of visual morbidity. While acute retinal necrosis occurs in immunocompetent patients, the majority of cases are associated with immunocompromise such as in cytomegalovirus retinitis and progressive outer retinal necrosis. This review summarises the clinical and diagnostic features, management, and outcomes of herpetic retinitis. Iatrogenic immunosuppression is increasingly being utilised for a wide range of indications, and biologic agents especially so due to their targeted nature. While the intended actions are well-studied, the flow-on effects and complex interaction with host immunity are not well understood. Furthermore, biologics are frequently used concomitantly with other immunosuppressive agents, potentiating the immunodepression. This article reviews the literature on biologic immunosuppression and viral retinitis, and presents an approach to the vulnerable or affected patient. Early identification, prompt and aggressive treatment, and a multidisciplinary approach to managing immunodeficiency are the cornerstones of management.

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© 2019 Royal Australian and New Zealand College of Ophthalmologists.