Role of intravitreal bevacizumab in adult onset Coats' disease

Abstract

To evaluate the role of intravitreal bevacizumab in the treatment of Coats' disease diagnosed in adulthood. Prospective, interventional case series. Three patients with Coats' disease diagnosed in adulthood were managed with a single intravitreal injection of bevacizumab (1.25 mg) with peripheral laser photocoagulation 3 weeks later. All three patients had exudation at the macula (Stage 2B) along with peripheral retinal telangiectasia and aneurysms. They were followed up for 9 months. An appreciable reduction in the exudation at the macula and macular edema was observed in all cases following intravitreal bevacizumab therapy. In all patients, the visual acuity improved, and no signs of recurrence were observed at the final follow-up at 9 months. Intravitreal bevacizumab injections may be effective as an adjunctive treatment for adult-onset Coats' disease with foveal exudation along with laser photocoagulation to the peripheral retinal vascular abnormalities. Intravitreal bevacizumab was well tolerated by our patients, and no adverse effects were observed.