Repeated Treatment for Macular Edema in Vein Occlusion by Intravitreal Implant of Dexamethasone

Abstract

Background: Macular edema (ME) treatment has benefited from the recent intravitreal pharmacotherapy development of an intravitreal implant of dexamethasone (Ozurdex®, Allergan, Irvine, Calif., USA). However, its efficiency has never been illustrated beyond 3 injections. Case Presentation: We report the case of a 75-year-old woman with inferior branch vein occlusion, who, after laser photocoagulation treatment and recurrence after intravitreal injection of triamcinolone, benefited from 4 injections of Ozurdex. Her macular thickness and visual acuity (VA) progression were assessed for 17 months. Conclusions: This case report highlights the quick efficiency of Ozurdex on VA and ME with good reproducibility and tolerance, and without tachyphylaxis phenomenon. This is the first illustrated description of 4 consecutive injections for ME induced secondary to retinal vein occlusion.

Keywords

• Macular edema
• Vein occlusion
• Intravitreal implant
• Dexamethasone
• Ranibizumab
• Optical coherence tomography
• Ozurdex®