XRCC1 and open-angle glaucoma: The combined genotypes of XPD and XRCC1 of the controls (Male+Female) was significantly different in case of POAG (χ2=20.44 [p=0.01]) and also in the case of male POAG patients (χ2=27.04 [p<0.001]), but not for female POAG patients (χ2=13.01 [p>0.05]) or for any distribution in the case of PCAG.