Fig. 3: Kaplan–Meier survival curves.

The success probability through the 12 months of follow-up, in the overall study sample (A) and in the XEN alone and the XEN+Phaco groups (B) and multivariate Cox proportional hazard ratios and 95% confidence intervals (CIs) for preoperative (C) and intraoperative (D) factors predictive of surgical failure. In survival curves, eyes lost to follow-up before month 12 and that did not meet the failure criteria were censored. F female, M male, PFX pseudoexfoliation glaucoma, IOP intraocular pressure, VF visual field, OHM ocular hypotensive medications, SN supero-nasal.