IL6 and Keratoconjunctivitis sicca: Tear IL-6 levels correlated with complaints of dry eyes (r=0.39, p=0.02), tear production (r=-0.59, p<0.0001), fluorescent staining of the cornea (r=0.42, p=0.01), and with the OSDI score (r=0.40, p=0.005).