Macular cytomegalovirus retinitis following dexamethasone intravitreal implant combined with phacoemulsification.

A 60-year-old diabetic patient, who had undergone a renal transplant 2 years earlier, presented with sudden decrease in vision in his left eye (LE). He had undergone phacoemulsification combined with intravitreal dexamethasone implant injection in his LE 2 months earlier, for coexistent cataract and diabetic macular edema. Examination revealed necrotizing retinitis with hemorrhages in the macula. A diagnosis of cytomegalovirus retinitis was made, which was confirmed on vitreous polymerase chain reaction. Intravitreal and systemic ganciclovir led to the resolution of retinitis and improvement of visual acuity over a follow-up of 9 months.