Table 2.

*Significance of within treatment change, p < 0.001. IOP intraocular pressure, SLT selective laser trabeculoplasty

		SLT1 Mean (standard deviation)	SLT2 Mean (standard deviation)	Paired t-test p-value
IOP	Baseline (n = 137)	20.3 (5.2)	19.4 (5.0)	0.03
	6–12 months (n = 130,119)	16.3 (4.3)	16.3 (4.8)	0.86
	12–15 months (n = 100,99)	16.4 (3.9)	16.7 (4.7)	0.24
IOP	6–12 months	4.1 (4.8)*	2.9 (4.7)*	0.04
decrease	12–15 months	3.5 (4.7)*	2.2 (4.5)*	0.005
IOP %	6–12 months	17.7 (19.8)*	14.7 (24.2)*	0.32
reduction	12–15 months	14.5 (23.4)*	10.9 (22.2)*	0.11

IOP and IOP reduction are in mmHg