IFNG and uveitis: ODN 2216 stimulation resulted in significantly higher expression of IFN-γ in IOTB (3.14 ± 0.65) as compared to non-uveitis (1.26 ± 0.24, p = 0.037), non-TB uveitis (0.87 ± 0.03, p = 0.008) and non-uveitis TB controls (0.93 ± 0.16, p = 0.002) (Fig. 4a–d,q).