International ophthalmology · 2026
Intravitreal sustained-release dexamethasone implant for the treatment of postoperative cystoid macular edema following vitrectomy.
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Huynh Elisa, Chronopoulos Argyrios, Langbein Lucrezia, Hattenbach Lars-Olof
Аннотация
AIM: Previous findings have demonstrated that intravitreal sustained-release dexamethasone (DEX) implants improve functional and anatomical outcomes in patients with cystoid macular edema (CME) following cataract surgery; however, data on the influence of different surgical indications remain limited. This study aims to evaluate the efficacy of DEX implants in patients with persistent postoperative CME following vitrectomy, and to assess differences in treatment response regarding surgical indication, phakic status, and prior treatment received before DEX.
METHODS: In this single-center study, we retrospectively reviewed data from 57 patients (57 eyes) who received a DEX implant for persistent postoperative CME following vitrectomy; main outcome measures were change in best corrected visual acuity (BCVA) and central retinal thickness (CRT). We then measured the effect of treatment outcomes across subgroups of patients according to surgical indication (rhegmatogenous retinal detachment vs. epiretinal membrane), phakic status, and prior receipt of subtenon triamcinolone.
RESULTS: Patient eyes receiving a DEX implant achieved a significant improvement in both functional and anatomical outcomes: BCVA gain, 0.53 to 0.47 logMAR (p = 0.0180); CRT reduction, 453.5 µm to 381.6 µm (p < 0.0001). The mean number of DEX implants received was 1.74, with no significant differences observed between patient subgroups. Subgroup comparisons did not show any significant impacts on BCVA or CRT by either surgical indication or type of surgery.
CONCLUSION: Sustained-release DEX implants provided immediate and lasting functional and anatomical benefits in patients with persistent postoperative CME. Outcomes such as the required number of DEX implants or treatment response were not significantly impacted by subgroup factors.
METHODS: In this single-center study, we retrospectively reviewed data from 57 patients (57 eyes) who received a DEX implant for persistent postoperative CME following vitrectomy; main outcome measures were change in best corrected visual acuity (BCVA) and central retinal thickness (CRT). We then measured the effect of treatment outcomes across subgroups of patients according to surgical indication (rhegmatogenous retinal detachment vs. epiretinal membrane), phakic status, and prior receipt of subtenon triamcinolone.
RESULTS: Patient eyes receiving a DEX implant achieved a significant improvement in both functional and anatomical outcomes: BCVA gain, 0.53 to 0.47 logMAR (p = 0.0180); CRT reduction, 453.5 µm to 381.6 µm (p < 0.0001). The mean number of DEX implants received was 1.74, with no significant differences observed between patient subgroups. Subgroup comparisons did not show any significant impacts on BCVA or CRT by either surgical indication or type of surgery.
CONCLUSION: Sustained-release DEX implants provided immediate and lasting functional and anatomical benefits in patients with persistent postoperative CME. Outcomes such as the required number of DEX implants or treatment response were not significantly impacted by subgroup factors.