Table 1.

Demographic characteristics of study subjects in the SLK and Ctrl groups.

Feature	Ctrl	SLK	p value
	(n = 18)	(n = 24)
Sex (# female, %)	13, 72.22%	20, 83.33%	0.46
Age (years)	39.89 ± 9.24	40.13 ± 14.55	0.96
FBUT (S)	8.28 ± 2.02	3.88 ± 2.35	0.00
SIT (mm)	7.5 (4.5)	6.0 (8.63)	0.37
Tear volume (μl)	5.6 (4.38)	4.90 (7.7)	0.22

FBUT, fluorescein breakup time; SIT, Schirmer I Test; p value less than 0.05 was considered statistically significant.