IL6 and dry eye syndrome: Furthermore, in the no dry eye group, there was also a statistically significant decrease in the concentration of IL-1β (27.64 ± 7.21, and 5.02 ± 0.28, respectively), IL-6 (29.48 ± 6.98, and 11.42 ± 1.53, respectively), IL-8 (196.43 ± 12.51, and 21.46 ± 4.63, respectively), MCP-1 (449.75 ± 41.62, and 29.58 ± 5.24, respectively), TNF-α (26.25 ± 2.31, and 13.64 ± 1.98, respectively), and IFN-γ (11.16 ± 1.85, and 5.10 ± 1.02, respectively) in lacrimal tears at 1 and 2 months following cataract surgery compared to the value of 1 day postoperatively (P <0.05, respectively).