TABLE 7.

IOP and Vision Outcomes

	1st Baerveldt Surgery Per Patient (n=76)	All Baerveldt Implantation Surgeries (n=110)	P †
IOP
Preoperative	26±9 mm Hg (median: 24, range: 7–53)	26±8 mm Hg (median: 25, range: 3–53)	0.60
Final	16±6 mm Hg (median: 15, range: 5–36)	11±6 mm Hg (median: 14, range: 4–36)	0.01
P *	<0.0001	<0.0001
Glaucoma medications
Preoperative	3.0±1.0 (median: 3.0, range: 0–5)	3.0±1.0 (median: 3.0, range: 0–5)	0.93
Final	2.0±1.0 (median: 2.0, range: 0–4)	2.0±1.0 (median: 2.0, range: 0–4)	0.90
P *	<0.001	<0.001
LogMAR visual acuity‡
Preoperative	0.61±0.50 (median: 0.54, range: 0.00–1.40)	0.52±0.40 (median: 0.48, range: 0.00–1.40)	0.40
Final	0.61±0.54 (median: 0.4, range: 0.0–1.90)	0.56±0.50 (median: 0.4, range: 0.0–1.90)	0.78
P *	0.99	0.43
Vision change (preoperative vs. final)
Improved	29 surgeries (38%)	46 surgeries (41%)
Stable	27 surgeries (36%)	33 surgeries (30%)
Worse	20 surgeries (26%)	31 surgeries (28%)

Statistically significant P<0.05 values are in bold.

^* P-value for Wilcoxon matched pairs signed rank test comparing respective preoperative and final values.

^† P-value for Mann-Whitney comparing respective first surgery of first eye and all surgeries of all eyes.

^‡Eyes in which both preoperative and final optotype visual acuities were obtained (40 eyes of 40 patients for first surgery of first eye, 59 eyes of 45 patients for all surgeries of all eyes).