Fig. 3
From: Xen 63 versus Preserflo MicroShunt implant in patients with primary open-angle glaucoma

Kaplan-Meier survival analysis. A. According to the criterion I (IOP between 6 and 18 mmHg and IOP reduction ≥ 20% preoperative values). Mean Hazard ratio: 0.47; 95% CI: 0.14 to 1.54; p = 0.2109. B. According to the criterion II (IOP between 6 and 15 mmHg and IOP reduction ≥ 20% preoperative values). Mean Hazard ratio: 0.43; 95% CI: 0.16 to 1.18; p = 0.1023. C. According to the criterion III (IOP between 6 and 12 mmHg and IOP reduction ≥ 20% preoperative values). Mean Hazard ratio: 0.67; 95% CI: 0.29 to 1.55; p = 0.3468.