. Author manuscript; available in PMC: 2017 Mar 1.

Published in final edited form as: Am J Ophthalmol. 2015 Nov 18;163:75–82.e3. doi: 10.1016/j.ajo.2015.11.023

Table 3.

Serious Complications Associated with Reoperation and/or Vision Loss in the Ahmed Baerveldt Comparison Study

	Ahmed Group (n = 143)	Baerveldt Group (n = 133)

Reoperation for complications	16 (14.3%)	24 (19.5%)

Vision loss of ≥ 2 Snellen lines
Persistent corneal edema	1	1
Persistent corneal edema + hypotony maculopathy	0	1
Persistent corneal edema + tube-corneal touch	0	2
Cystoid macular edema	0	1

Total number of subjects with serious complications^†	17 (15.9%)	29 (24.7%)

Data censored after a reoperation for glaucoma.

^†

P = 0.034 for the difference in 5-year cumulative serious complication rates between treatment groups from Kaplan-Meier analysis (log rank test adjusted for stratum).