Anterior chamber migration of a sustained-release dexamethasone intravitreal implant: A case report and review of literature

The purpose of the study was to report a case of migration of a dexamethasone intravitreal implant (Ozurdex(®)) into anterior chamber and review the literature pertaining to the anterior chamber migration of implant. Clinical data were collected from a patient, in whom a dexamethasone intravitreal implant migrated to anterior chamber. A review of literature was conducted to analyze additional reports. A 59-year-old aphakic patient with recalcitrant cystoid macular edema due to chronic idiopathic uveitis was treated with intravitreal injection of dexamethasone implant. Migration of the implant into anterior chamber was noted after a month of injection. Since his cornea was clear and intraocular pressure was normal, he was managed conservatively. Sixteen such reports of migration of implant into anterior chamber was analyzed to look into the possible etiologies and outcome. Disruption of lens capsule, large basal iridectomy, and prior vitrectomy are the primary risk factors for migration of dexamethasone implant into the anterior chamber.