. Author manuscript; available in PMC: 2015 Aug 1.

Published in final edited form as: Ophthalmology. 2014 Apr 24;121(8):1547–1557.e1. doi: 10.1016/j.ophtha.2014.01.036

Table 6.

Complications Associated with Reoperation or Vision Loss

	Ahmed Group (n = 109)	Baerveldt Group (n = 107)
Reoperation for complications	12 (11%)	21 (20%)
Vision loss of ≥ 2 Snellen lines^†	12 (11%)	17 (16%)
Total Patients with Serious Complications	24 (22%)	38 (36%)

Data are presented as number (percentage).

Total Numbers in this table are based on the number of participants who had a 36 month vision measured and/or had a previous complications reoperation.

^†

Some patients did not have Snellen Visual Acuity at 1 year because they missed the 1 year visit.