Pterygium and genetic polymorphisms of the DNA repair enzymes XRCC1, XPA, and XPD.

Abstract

The XRCC1 codon 194 polymorphism causes a decreased risk of developing pterygium, but the codon 399 polymorphism increases the risk. There is no correlation between pterygium and XRCC1 codon 107 and 280, XPA A23G, and XPD codon 751 polymorphisms.