Table 1.

Ocular surface disease index scores in the treatment and placebo groups at baseline, 2 weeks, and 4 weeks after treatment.

	Follow-up periods			P value
	Baseline	2 weeks	4 weeks	P1	P2	P3
Treatment group (N = 25)	25.20 ± 8.28	22.36 ± 10.10	18.20 ± 4.25	0.88	<0.01	<0.01
Placebo group (N = 25)	26.48 ± 9.21	25.84 ± 4.78	24.84 ± 3.42	0.99	0.79	0.85
P value	0.85	0.18	<0.01

P1 baseline versus 2 weeks; P2 baseline versus4 weeks; and P3 2 weeks versus 4 weeks.