Single Institution Experience of Intravitreal 0.18-mg Fluocinolone Acetonide Implant for Noninfectious Uveitis

Abstract

To report the outcomes of the 0.18-mg fluocinolone acetonide implant (FAi) in the treatment of noninfectious uveitis. Retrospective cohort study. Patients who received the 0.18-mg FAi for the treatment of noninfectious uveitis affecting the posterior segment (NIU-PS) between July 1, 2019, and August 31, 2021, at the University of Colorado. Patients were excluded if they did not have ≥6 months of follow-up after the placement of the implant. Data including age, race/ethnicity, sex, uveitis diagnosis, history and current use of anti-inflammatory therapy, use of short-acting corticosteroid injections within the 3 months before the 0.18-mg FAi implantation, visual acuity, intraocular pressure (IOP), grading of anterior chamber and vitreous cell, and presence of cystoid macular edema were obtained from the medical charts. Uveitis recurrence was defined as any increased inflammation that required additional anti-inflammatory therapy. Probability of remaining recurrence-free after the placement of the 0.18-mg FAi. Sixty-four eyes from 42 patients were included. The overall probability of remaining recurrence-free was 68.8% at 6 months and 52.6% at the 12-month follow-up. Eyes that remained recurrence-free at 12 months had a younger mean age than eyes that had a recurrence within 12 months (P= 0.02). Eyes that received a short-acting corticosteroid injection before the 0.18-mg FAi were more likely to have a recurrence by 6 months of follow-up than eyes that did not receive a pre-FAi corticosteroid injection (P= 0.05). Initiation or addition of IOP-lowering eyedrops was required in 15.6% of eyes, and 4.7% of eyes required IOP-lowering surgery after 0.18-mg FAi placement. The 0.18-mg FAi appears to be an effective option in the management of NIU-PS, with relativelylow rates of ocular hypertension requiring intervention. The use of short-acting corticosteroid injections before the placement of the 0.18-mg FAi does not seem to improve the effectiveness of the 0.18-mg FAi, although this may be partially because of selection bias. Additional studies are required to determine patients who are the optimal candidates for this therapy.