Objectives: To evaluate the efficacy and safety of dexamethasone (DEX) implants as mono or combination therapy for macular edema in retinal vein occlusion (RVO) with real-life conditions, and to detect factors that influence final visual acuity.
Materials And Methods: Twenty-five eyes with macular edema secondary to RVO underwent assessments for central macular thickness (CMT), best-corrected visual acuity (BCVA), adverse events, and also morphologic changes in optical coherence tomography at an interval of 4-8 weeks after at least one DEX implant.
Results: Seventeen eyes with branch RVO and 8 eyes with central RVO were eligible for the study. The mean follow-up duration was 17 months (range, 12-26 months). Both mean BCVA (p=0.009) and CMT (p=0.006) improved significantly, and visual gains of ≥3 lines were achieved in 32% and ≥2 lines in 52% at the end of the follow-up period. The most powerful individual predictor of final visual acuity was baseline BCVA (r2=0.611, p<0.001, stepwise multiple regression), but the most efficient model was the combination of the ellipsoid zone (EZ) integrity and baseline BCVA (r2=0.766, p<0.001, stepwise multiple regression). Complication rates were very low after repeated DEX implants.
Conclusion: DEX implant seems to be an effective and safe treatment for macular edema in RVO despite negative real-life factors, and visual outcomes are associated with baseline visual acuity and EZ integrity.
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| http://dx.doi.org/10.4274/tjo.75317 | DOI Listing |
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