PGF and hypertensive disorder: To test whether hypertension in the NVG group affected the PlGF and VEGF-A concentrations in the aqueous humor, the PlGF and VEGF-A levels were compared between the patients with hypertension (n = 8) and the patients without hypertension (n = 12).There was no statistical difference in the PlGF and VEGF-A levels between these two groups (p = 0.643 and p = 0.537, respectively) in the Mann—Whitney U test.