HGF and open-angle glaucoma: In this study, the number of samples where HGF was above a set threshold of detection was analysed between the POAG and cataract group (Table 2, p = 0.003); whilst this comparison did not pass correction for multiple testing, the result is in line with published literature, showing a significant increase in HGF in glaucomatous aqueous humor in relation to cataract samples [26].