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Purpose We investigated the age-related senescent phenotype in the normal corneal epithelium and the role of TGF-β in corneal epithelium aging and inflammation.Methods We collected the donor corneal rims(residual tissues)with different ages via penetrating keratoplasty(PKP)and analyzed the expression of aging markers SA-β-Gal,p16,p21 and the differential expression of TGF-β.