Regarding the structure-function correlations we investigated in the glaucoma group, we found significant nonlinear correlations between GDF and VFMD values (R2 = 0.295, p < 0.001; Figure 2) and between OCT's pRNFL thickness and VFMD values (R2 = 0.598, p < 0.001; Figure 3). The gene discussed is PAEP; the disease is glaucoma.