Fig. 1From: Comparison of surgical outcomes between initial trabeculectomy and Ex-PRESS in terms of achieving an intraocular pressure below 15 and 18 mmHg: a retrospective comparative studyKaplan-Meier life table with log-rank test for Criterion 1. Criterion 1: 5 < IOP < 15 mmHg without any additional glaucoma medication or interventions. The Kaplan–Meier life table with log-rank test showed no significant difference between the groups (P = 0.755). Trab, trabeculectomy; EX, Ex-PRESSBack to article page