Figure 1.

 Changes in intraocular pressure (p <0.001) (A), optic nerve head blood flow (p <0.001) (B), and fundus pulsation amplitude (p <0.001) (C) in patients following trabeculectomy (n = 30). There was a significant increase in OnhBF at 2 weeks postoperatively (11.6% (16.4%); p<0.001), and at 10 weeks (16.2% (20.2%); p <0.001; B). At the first and second postoperative evaluations, FPAs were also significantly higher as compared to baseline values (17.2% (17.3%) and 17.4% (16.3%), respectively; p <0.001; C).