Table 2 Comparison of different parameters between cases and controls after 1 month

Schirmer test I

10.14 ± 1.61

6.86 ± 0.94

<  0.001

TMH

0.18 ± 0.02

0.14 ± 0.02

<  0.001

NITBUT

11.07 ± 0.99

8.43 ± 1.82

<  0.001

LLT

73.57 ± 5.93

63.07 ± 3.33

<  0.001

CSF

1.50 ± 0.76

2.43 ± 0.514

0.004

 Upper

2.71 ± 0.611

2.43 ± 0.514

0.165

 Lower

2.86 ± 0.535

3.14 ± 0.535

0.165