Table 3.

Changes of intraocular pressure (IOP) during the study.

Study group	IOP, mmHg, mean (SD)
	Right eye	P value∗	Left eye	P value∗	Both eyes	P value∗
Experimental
Baseline	14.7 (3.3)	—	15.1 (3.3)		14.9 (3.3)	—
3 months	13.0 (2.7)	0.072	12.8 (2.6)	0.04	12.9 (2.6)	0.006
6 months	12.1 (1.5)	0.01	12.2 (2.4)	0.007	12.2 (2.0)	0.0003
Control
Baseline	15.0 (3.7)	—	14.7 (4.9)	—	14.8 (4.3)	—
3 months	12.6 (2.2)	0.016	13.4 (3.2)	0.130	13.0 (2.8)	0.004
6 months	13.4 (3.4)	0.090	14.4 (4.9)	0.679	13.9 (4.2)	0.110

^∗ P values versus baseline for all comparisons.