Table 2.

Intraocular pressure values before and after selective laser trabeculoplasty

	All	First line	Second line	P value
Eyes (n)	99	74	25
Pretreatment IOP (mean±SD) (mm Hg)	16.1±2.0	16.3±2.1	15.4±1.5	0.015*
1 month
IOP (mean±SD) (mm Hg)	12.9±2.1	13.0±2.2	13.0±1.8	0.236*
IOP reduction rate (mean±SD) (%)	19.8±9.5	20.2±10.0	18.8±8.0	0.494*
3 months
IOP (mean±SD) (mm Hg)	13.3±2.2	13.3±2.3	13.2±2.3	0.822*
IOP reduction rate (mean±SD) (%)	17.3±10.5	18.2±10.8	14.5±9.2	0.100*
6 months
IOP (mean±SD) (mm Hg)	13.3±2.0	13.3±2.0	13.4±2.1	0.903*
IOP reduction rate (mean±SD) (%)	16.8±9.2	18.0±8.7	13.1±9.8	0.037*
9 months
IOP (mean±SD) (mm Hg)	13.4±2.0	13.4±2.0	13.2±2.0	0.634*
IOP reduction rate (mean±SD) (%)	16.2±9.6	17.1±9.6	13.5±9.4	0.115*
12 months
IOP (mean±SD) (mm Hg)	13.3±1.9	13.4±1.9	13.2±1.9	0.722*
IOP reduction rate (mean±SD) (%)	16.0±9.7	17.1±9.5	12.7±9.7	0.063*

*Mann-Whitney U test.

IOP, intraocular pressure.