Incidence of Endophthalmitis after Cataract Surgery in the Setting of Uveitis and Immunosuppressive Therapy within the IRIS® Registry

PubMed ID: 40499788

Author(s): Ghoraba HH, Haque ME, Or C, Yu G, Nguyen QD, Pershing S; IRIS® Registry (Intelligent Research in Sight) Analytic Center Consortium. Incidence of Endophthalmitis after Cataract Surgery in the Setting of Uveitis and Immunosuppressive Therapy within the IRIS® Registry. Ophthalmology. 2025 Nov;132(11):1253-1259. doi: 10.1016/j.ophtha.2025.06.005. Epub 2025 Jun 9. PMID: 40499788; PMCID: PMC12283248.PMID 40499788

Journal: Ophthalmology 132(11)

Purpose: To determine the differences in incidence of acute postoperative endophthalmitis after cataract surgery in the setting of uveitis and immunosuppressive therapy using the American Academy of Ophthalmology IRIS® Registry (Intelligent Research in Sight).

Design: Retrospective cohort study.

Participants: Patients undergoing cataract surgery in the United States from 2013 to 2023.

Methods: The IRIS Registry was queried to identify cataract surgeries performed between January 1, 2013, and March 21, 2023. Postoperative endophthalmitis was identified based on endophthalmitis diagnosis codes and vitreous tap and intravitreal antibiotic injection within 60 days after surgery. Cases with a recent noninfectious uveitis diagnosis within 1 year before cataract surgery were also identified. Active use of systemic corticosteroids and immunosuppressives was determined using drug names and the National Library of Medicine Rx Concept Unique identifier. Eyes that underwent cataract surgery were classified into 4 groups: Group A: Eyes with no uveitis in patients with no concurrent systemic corticosteroid or immunosuppressive treatment (general population). Group B: Eyes with recent uveitis in patients with no concurrent systemic corticosteroid or immunosuppressive treatment. Group C: Eyes with no uveitis in patients with concurrent systemic corticosteroid or immunosuppressive treatment. Group D: Eyes with recent uveitis in patients with concurrent systemic corticosteroid or immunosuppressive treatment. Multivariable logistic regression was performed to evaluate the likelihood of endophthalmitis.

Main outcome measures: Incidence of acute-onset postoperative endophthalmitis in eyes with a uveitis diagnosis and in eyes of patients under systemic corticosteroid and immunosuppressive therapy.

Results: A total of 9 742 773 cataract surgeries were identified; of those, 128 254 were in patients on systemic corticosteroids or immunosuppressives at the time of surgery. The incidence of acute postoperative endophthalmitis within 60 days after surgery was 0.058%, 0.468%, 0.137%, and 0.964%, in groups A, B, C, and D, respectively. The highest incidence of endophthalmitis diagnoses was in eyes with uveitis diagnoses; however, among eyes with and without uveitis, endophthalmitis incidence was higher in patients treated with immunosuppressives or corticosteroids. Multivariate logistic regression analysis revealed that systemic corticosteroids were more associated with endophthalmitis compared with systemic immunosuppressives.

Conclusions: Underlying uveitis diagnosis, systemic corticosteroids, and immunosuppressives are associated with an increased likelihood of acute postoperative endophthalmitis after cataract surgery.