Table 2.

Time course of conjunctival hyperemia and superficial punctate keratitis (SPK) scores

Score	Study period
	Baseline	2 weeks	4 weeks	8 weeks	12 weeks
Conjunctival hyperemia
Treated eyes	0.26 ± 0.45	0.71 ± 0.60	0.79 ± 0.54	0.88 ± 0.55	0.94 ± 0.44
Fellow eyes	0.24 ± 0.43	0.11 ± 0.31	0.18 ± 0.46	0.22 ± 0.49	0.25 ± 0.44
P-value	0.5706	<0.0001	<0.0001	<0.0001	<0.0001
SPK
Treated eyes	0.07 ± 0.17	0.09 ± 0.19	0.06 ± 0.13	0.05 ± 0.11	0.11 ± 0.18
Fellow eyes	0.07 ± 0.19	0.04 ± 0.16	0.02 ± 0.06	0.03 ± 0.09	0.06 ± 0.13
P-value	1.0000	0.2919	0.0894	0.4664	0.1992

Notes: Scores are presented as the mean plus or minus the standard deviation; analyzed by Wilcoxon signed-rank test.