These results suggested that the expression of TSLP mRNA, IL-4 mRNA, IL-5 mRNA, and IL-13 mRNA increases in these three groups of allergic conjunctivitis, suggesting the possible involvement of TSLP, IL-4, IL-5, and IL-13 in allergic development (Figure 2). The gene discussed is TSLP; the disease is atopic conjunctivitis.