The expression of C3 and CFH genes was significantly downregulated in the patients with non-infectious uveitis as compared to controls (C3, AAU vs. controls, FC -5.0 ± 0.7; *p = 0.03; CFH AAU vs. controls, FC -6.67 ± 1.0; *p = 0.04). Here, C3 is linked to uveitis.