Fig. 2
From: Outcome of a single XEN microstent implant for glaucoma patients with different types of glaucoma
Pre- and postoperative IOP in different groups of glaucoma. Scattergram of pre- and 12-month postoperative IOP (in mmHg) in the four subgroups of glaucoma treated with XEN-microstent-implantation in (a) primary open angle glaucoma, (b) normal pressure glaucoma, (c) pseudoexfoliation glaucoma, (d) secondary glaucoma. The 21 mmHg-value is highlighted with a horizontal line to recognize the proportion of cases with an IOP below or above 21 mmHg 12 months after surgery