Cytomegalovirus retinitis, in a diabetic immunocompetent patient, after intravitreal ranibizumab injection
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Updated: Feb 10, 2026

Intravitreal Injections in the Ovine Eye
Published on: July 5, 2022
Paraskevas Zafeiropoulos1, Polykseni Tamboura1, Maria Dimou2
11 University Hospital of Ioannina, Ioannina, Greece.
Abstract:
We here report a case of cytomegalovirus retinitis in a diabetic patient that occurred after intravitreal ranibizumab injection. A 75-year-old woman was treated with intravitreal ranibizumab injections for diabetic macular edema. During this period, a retinitis occurred in her left eye along with increased IgG and later IgM cytomegalovirus antibody titers. Ocular and intravenous ganciclovir was administered. Cytomegalovirus retinitis subsided post treatment with residual areas of retinal atrophy. Ophthalmologists should be aware of the incidence of cytomegalovirus retinitis, in diabetic patients, after ranibizumab injection.
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