Table 2.

Intraocular Pressure and Medical Therapy in the Tube Versus Trabeculectomy (TVT) Study

	Tube Group	Trabeculectomy Group	P-value*
Baseline
IOP (mm Hg)	25.1 ± 5.3	25.6 ± 5.3	0.56
Glaucoma medications	3.2 ± 1.1	3.0 ± 1.2	0.17
1 year
IOP (mm Hg)	12.5 ± 3.9	12.7 ± 5.8	0.73
Glaucoma medications	1.3 ± 1.3	0.5 ± 0.9	< 0.001
2 years
IOP (mm Hg)	13.4 ± 4.8	12.1 ± 5.0	0.101
Glaucoma medications	1.3 ± 1.3	0.8 ± 1.2	0.016
3 years
IOP (mm Hg)	13.0 ± 4.9	13.3 ± 6.8	0.78
Glaucoma medications	1.3 ± 1.3	1.0 ± 1.5	0.3

Data are presented as mean ± standard deviation.

IOP = intraocular pressure

^*Student t-test

Adapted from [7••].