Outcome	Name	All trials	Excluding trials at high risk of bias in 1 or more domains
Analysis 1.1*	Failure of functioning trabeculectomy at 1 year	RR 0.54, 95% CI 0.30 to 1.00	RR 1.02, 95% CI 0.50 to 2.04
Analysis 1.4*	Mean intraocular pressure at 1 year	MD ‐3.05 mmHg, 95% CI ‐4.60 to ‐1.50	MD ‐1.72 mmHg, 95% CI ‐3.28 to ‐0.16
Analysis 1.5**	Use of postoperative medication at 1 year	RR 1.03, 95% CI 0.57 to 1.85	RR 1.39, 95% CI 0.75 to 2.57
Analysis 1.6*	Mean number of postoperative medications at 1 year	MD ‐0.33, 95% CI ‐0.70 to 0.05	MD ‐0.08, 95% CI ‐0.27 to 0.11
Analysis 1.7**	Loss of 2 or more lines of visual acuity at 1 year	RR 1.05, 95% CI 0.54 to 2.06	RR 2.00, 95% CI 0.53 to 7.59