Treatment with the total flavonoids of FK, which had been confirmed as containing rutin and quercetin, significantly inhibited these imbalanced secretion of IL-6, IL-18, and IFN-γ and increased the IL-10 production by lymphocytes, which strongly suggested that the total flavonoids of FK had a therapeutic effect on ACD via ameliorating the inflammatory cytokine secretion of Th1/Th2 cells. This evidence concerns the gene IFNG and granular corneal dystrophy type II.