In our study, the serum IL-22 levels in the uveitis patients were significantly increased compared to those in the healthy controls (mean value ± SEM) (uveitis patients, n = 20; 63.35 ± 15.36 pg/ml vs. healthy controls, n = 19; 13.40 ± 3.002 pg/ml; p = 0. Here, IL22 is linked to uveitis.