Table 3 Decrease in intraocular pressure from baseline at various time points.

Degree	ALT (SD), n	SLT (SD), n	p Value
Baseline	23.4 (4.215), 87	23.84 (4.878), 89	0.601
1 month	−4.09 (4.116), 78	−4.01 (4.363), 81	0.909
3 months	−4.93 (4.759), 73	−5.09 (5.732), 76	0.182
6 months	−5.08 (4.950), 79	−5.99 (5.825), 79	0.291
12 months	−6.04 (4.821), 74	−5.86 (6.152), 73	0.846

ALT, argon laser trabeculoplasty; SLT, selective laser trabeculoplasty.