Purpose: To investigate dexamethasone intravitreal implant (DEX implant; OZURDEX, Allergan, Inc) in the treatment of uveitic cystoid macular edema that had persisted in the absence of intraocular inflammation.
Methods: In this prospective interventional case series, 10 patients with uveitic cystoid macular edema and quiescent uveitis were treated with dexamethasone intravitreal implant at baseline and evaluated monthly for one year. Patients were retreated whenever cystoid macular edema recurred. The primary outcome measure was best-corrected visual acuity (BCVA) at day 90.
Results: At day 90, mean improvement from baseline BCVA was 14.4 letters (P = 0.0003), 70% of patients had a ≥10 letter BCVA improvement, 50% of patients had a ≥15 letter BCVA improvement, and the mean decrease from baseline central subfield retinal thickness was 140 μm (P = 0.008). Improvements were maintained through day 360 with retreatment as needed. At day 360, mean improvement in BCVA was 16.5 letters (P = 0.006) and the mean decrease in central subfield retinal thickness was 158 μm (P = 0.002). One patient experienced intraocular pressure >25 mmHg (managed with topical medication). Two phakic patients (2/8; 25%) had worsening of lens opacity requiring cataract extraction.
Conclusion: Dexamethasone intravitreal implant may be an effective treatment for patients with persistent cystoid macular edema in quiescent uveitis.
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