C3 and anterior uveitis: An enzyme-linked immunosorbent assay (ELISA), performed for the assessment of complement activation in the aqueous humor of patients with anterior uveitis, showed significantly higher expression of activated fragment of complement component C3b in non-infectious (28906.0 ± 6556; **p = 0.0007) and infectious uveitis (24823.2 ± 9382; *p = 0.03) as compared to controls (1868± 1439).