Ahmed Glaucoma Valve Implantation for Refractory Glaucoma in a Tertiary Hospital in Brazil

Table 2

Comparison between baseline and postoperative visual acuity, intraocular pressure, and glaucoma medications.

Parameters	Baseline	Postoperative	value
Visual acuity ()
Mean ± SD	1.13 ± 0.68	1.23 ± 0.64	0.021
IOP
Mean ± SD	29.00 ± 9.72	16.69 ± 7.08	<0.001
Glaucoma medications
Mean ± SD	3.50 ± 0.67	2.44 ± 1.27	<0.001

SD: standard deviation; IOP: intraocular pressure.