IL4 and keratoconus: There was no difference in TNF-α (F(2, 15) = 0.7828, P = 0.4749, Figure 2B), IL-1β (F(2, 15) = 0.04009, P = 0.9608, Figure 2C), IL-2 (F(2, 15) = 0.1656, P = 0.8489, Figure 2D), IL-4 (F(2, 15) = 1.738, P = 0.2094, Figure 2E), IL-5 (F(2, 15) = 0.3083, P = 0.7393, Figure 2F), IL-10 (F(2, 15) = 0.341, P = 0.7164, Figure 2H), IL-12p70 (F(2, 15) = 0.2097, P = 0.8132, Figure 2I), KC/GRO (F(2, 15) = 0.01621, P = 0.9839, Figure 2J), or INF-γ (F(2, 15) = 0.1064, P = 0.8997, Figure 2K) in the hippocampus among groups.