ABSTRACT
PURPOSE: To identify rates of uveitis reactivation both before and after the coronavirus disease (COVID) 2019 vaccine in subjects with a previous diagnosis of uveitis. DESIGN: Retrospective study. PARTICIPANTS: Subjects were identified from the Inflammatory Eye Disease Registry at Auckland District Health Board diagnosed with uveitis between January 1, 2010, and December 31, 2020. METHODS: Date of COVID vaccination was determined from the patient clinical record. Rate of flare was calculated for 3 months before vaccination and 3 months after each vaccination. MAIN OUTCOME MEASURE: Uveitis flare was defined as the presence of new uveitis activity or increased activity that required a change in uveitis treatment. RESULTS: A total of 4184 eyes of 3008 patients were included in the study with a total of 8474 vaccinations given during the study period. Median age was 54.8 years, and 1474 (49.0%) were female. Noninfectious etiology was most common, occurring in 2296 patients (76.3%) and infectious etiology occurring in 712 patients (23.7%). Rate of uveitis flare was 12.3 per 1000 patient-months at baseline, 20.7 after the first dose, 15.0 after the second dose, 12.8 after the third dose, and 23.9 after the fourth dose. The median period of quiescence before flare was 3.9 years. An increase in uveitis flare was seen in both infectious uveitis (baseline 13.1 compared with 20.2 after first dose, 154% increase) and noninfectious uveitis (baseline 12.4 compared with 20.9 after first dose, 169% increase). Risk factors for uveitis flare were identified to be recurrent uveitis, chronic uveitis, shorter period of quiescence, and first dose of vaccine. Median time to uveitis flare was 0.53 months after the first vaccination, 1.74 months after the second vaccination, and 1.35 months after the third vaccination. CONCLUSIONS: The current study demonstrates an increased risk of uveitis flare after the first dose of COVID vaccination. This risk was highest in those with previous recurrences, chronic uveitis, and shorter period of quiescence. FINANCIAL DISCLOSURE(S): Proprietary or commercial disclosure may be found after the references.