Background: It is not thoroughly clear that what is the exact etiology of pterygium. Recently. it has been illustrated that pterygium is a benign and destructive condition. The aim of this study was to examine the correlation between promoter hypermethylation of P15INK4band P16INK4a genes on progress of pterygium. https://safeersappliancers.shop/product-category/bosch-kgn34nl3agb-60cm-st-steel-fridge-freezer/