TGFB2 and open-angle glaucoma: Several studies could demonstrate higher amounts of TGF-β2 in aqueous humor samples of patients with POAG (Tripathi et al., 1994; Inatani et al., 2001; Picht et al., 2001; Ochiai and Ochiai, 2002; Ozcan et al., 2004; Yamamoto et al., 2005; Min et al., 2006; Trivedi et al., 2011).