As illustrated in Figure 2A, the aqueous humor concentration of TGF-β2 in the non-POAG group (10 eyes from 10 patients) was 425.8 ± 62.3 pg/mL, whereas in the POAG group (8 eyes from 8 patients) it was notably higher at 1191.0 ± 271.9 pg/mL (P = 0.0077). The gene discussed is TGFB2; the disease is open-angle glaucoma.