Significant positive correlations were obtained with FLRG (rs = 0.706, p = 0.0007) and Uteroglobin (rs = 0.805, p < 0.0001) for POAG but not the cataract group (rs = 0.475, p = 0.065 and rs = 0.555, p = 0.022, respectively). Here, SCGB1A1 is linked to open-angle glaucoma.