IL6 and diabetes mellitus: The level of vitreous IL-6 was much lower in CTL (100.0 ± 16.0%) compared to DM (454.5 ± 118.3%) and DR (430.6 ± 234.9%) but no significant difference was found between the groups (CTL vs. DM: p = 0.9240; CTL vs. DR: p > 0.9999) (Figure 8D).