To determine the potential role of intraoperative dexamethasone intravitreal implant (DEX-I) in reducing diabetic macular edema (DME) worsening after phacoemulsification.
This was a prospective study on 19 eyes of 19 patients with type 2 diabetes mellitus with DME and cataract. Mean preoperative Early Treatment Diabetic Retinopathy Study visual acuity (VA) was 16.7 letters. Mean foveal thickness (FT) was 451 μm. The DME was naive in 11 eyes and refractory in 8 eyes. All eyes underwent a standard phacoemulsification and intraocular lens implantation; DEX-I was injected at the end of surgery. Follow-up was performed at 1 week and then monthly until DME recurrence (up to 8 months).
At 1 week, mean VA improved by 15 letters (range 0-29 letters) and mean FT decreased by 147 μm (range 69-236 μm). Improvement consolidated at month 1, with a mean VA improvement of 18 letters (range 3-32 letters) and a mean improvement in FT of 193 μm (range 76-304 μm), remaining stable at month 2 after surgery in all eyes. The DME recurred in 1 eye at month 3, in 14 eyes (73.8%) between months 4 and 5, and after month 6 in 4 eyes (21%). Refractory DMEs demonstrated the same benefit but recurred earlier than naive ones (4 months versus 5.8 months, p<0.01).
Intraoperative DEX-I prevents DME worsening after phacoemulsification. Its positive effects last for at least 3 months.
Eur J Ophthalmol 2017; 27(4): 433 - 437
Article Type: ORIGINAL RESEARCH ARTICLE
AuthorsGiacomo A. Panozzo, Elena Gusson, Giorgio Panozzo, Giulia Dalla Mura
- • Accepted on 28/11/2016
- • Available online on 16/12/2016
- • Published in print on 26/06/2017
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- Panozzo, Giacomo A. [PubMed] [Google Scholar] 1, * Corresponding Author (email@example.com)
- Gusson, Elena [PubMed] [Google Scholar] 2
- Panozzo, Giorgio [PubMed] [Google Scholar] 3
- Dalla Mura, Giulia [PubMed] [Google Scholar] 1
Ophthalmology Unit, Bussolengo Hospital, Bussolengo (Verona) - Italy
Department of Ophthalmology, University of Medicine, Verona - Italy
School of Medicine, University of Parma, Parma - Italy