Fig. 5From: Efficacy of topical 0.05% cyclosporine A and 0.1% sodium hyaluronate in post-refractive surgery chronic dry eye patients with ocular painChanges in tear (A) IL-6, (B) IL-1β, (C) TNF-α levels after 1 and 3 month treatment compared with baseline values. Data is expressed as mean and 95% confidence interval. IL, interleukin; TNF-α, tumor necrosis factor-α. *P<0.05; **P<0.01Back to article page