Table 2 Comparisons of clinical DED test results and osmolarity between patient and control group.

From: Utility of Tear Osmolarity Measurement in Diagnosis of Dry Eye Disease

Examination

Patients

Controls

p-value

OSDI

27.1 ± 18.3

1.9 ± 2.2

<0.001

Tear osmolarity (mOsm/L)

310.6 ± 16.2

310.3 ± 19.4

0.754

TFBUT (seconds)

3.4 ± 3.2

8.6 ± 3.4

<0.001

OPI

1.5 ± 1.4

2.7 ± 1.4

<0.001

OSS

1.9 ± 1.9

0.6 ± 0.8

<0.001

Schirmer I test (mm/5 min)

14.3 ± 9.0

19.5 ± 10.7

<0.015

Meibum expressibility

1.8 ± 0.8

0.2 ± 0.5

<0.001

Meibum quality

8.9 ± 4.5

0.5 ± 1.1

<0.001

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