Fig. 1: Kaplan–Meier curves.
From: Clinical outcomes of the PAUL® Glaucoma implant for refractory glaucoma: three-year results

Complete and qualified success rates (95% CI) were 51.8% (37.5–66.1) and 89.3% (80.4–96.4) for Criterion A, 48.2% (35.7–60.7) and 78.6% (67.9–87.5) for Criterion B, 44.6% (32.1–57.1) and 64.3% (51.8–76.8%) for Criterion C and 26.8% (16.1–39.3) and 37.5% (25.0–50.0) for Criterion D.