Table 4. The Comparison of Tear and Meibomian Gland Parameters in the Long Time VDT Workers with Low or Normal Tear Volumes.

Parameters	Schirmer Test (<10 mm, n = 52)	Schirmer Test (>/ = 10 mm, n = 54)	P
Schirmer (mm)	4.89±1.98	17.93±6.95	<0.0001
VDT working time (h/d)	8.11±2.37	8.51±2.26	0.407
OSDI	37.92±18.27	36.87±18.34	0.676
BUT (s)	4.73±1.78	5.11±2.89	0.86
Fluorescein score	3.67±2.87	3.78±3.11	0.995
Lid margin abnormality score	1.37±0.63	1.56±0.72	0.114
Meibum score	1.37±0.66	1.15±0.71	0.112
Meiboscore	2.23±1.15	2.41±1.07	0.301

Note: Data presented as Mean ± SD of Values.