Table 2 Optical quality comparison of participants before after artificial tears application

Normal control

31

0.54±0.23

0.69±0.27

0.56±0.29

0.12±0.06

0.20±0.10

0.13±0.05

t value

-2.418

-0.338

-3.802

-0.481

P value

0.019

0.737

0.000

0.632

Mild ADDE

28

0.83±0.38

1.00±0.48

0.91±0.53

0.40±0.70

0.13±0.05

0.28±0.27

t value

-1.444

-0.597

1.966

0.848

P value

0.155

0.553

0.066

0.402

Severe ADDE

31

1.05±0.65

0.78±0.36

0.83±0.76

0.47±0.72

0.15±0.08

0.36±0.38

t value

2.073

1.214

2.508

0.752

P value

0.044

0.299

0.018

0.455