Table 4.

Cumulative success rates at different times after surgery

	around 6 months after XEN® implantation			around 12 months after XEN® implantation			at final follow-up (after 17.7 ± 11.3 months)
Complete success	11/15 eyes	73.3%	95% CI: 45–92%	10/16 eyes	62.5%	95% CI: 35–85%	18/25 eyes	72.0%	95% CI: 50–88%
Qualified success	0/15 eyes	0.0%	95% CI: 0–22%	1/16 eyes	6.25%	95% CI: 0–30%	1/25 eyes	4.0%	95% CI: 0–20%
Failure	4/15 eyes	26.7%	95% CI: 8–55%	5/16 eyes	31.25%	95% CI: 11–59%	6/25 eyes	24.0%	95% CI: 9–45%
Complete failure	0/15 eyes	0.0%	95% CI: 0–22%	0/16 eyes	0.0%	95% CI: 0–21%	0/25 eyes	0.0%	95% CI: 0–14%