IL10 and fungal infectious disease: As a Th2-type cytokine, its expression in normal corneal epithelium could inhibit activation of immune cells to prevent immune response leading to tissue damage, and after fungal infections, innate immunity of the body is firstly activated, when the site of infection requires a lot of inflammatory cell, expression of IL-10 decreases to let its immunosuppressive effect down to help killing the fungus early.