IL17A and uveitis: While IFN-γ and IL-17 were included in the analysis, IL-17 was undetectable, below the level of detection (data not shown), and IFN-γ was 2.2 ± 0.6 ng/mL in 27 uveitis patients, but was below the level of detection in controls, so not possible to make a statistical comparison (data not shown).