Table 1. .

NS Versus WO Tear Samples: All Patients, Paired Comparisons

	Non-AD	AD
Number of patients/eyes	23/26	26/37
Age, y	42.4 ± 18.8*	49.9 ± 13.9
Age range, y	21–75	21–72
Schirmer test, mm/5 min	22.6 ± 9.5	4.6 ± 2.4
OSDI score	17 ± 21	30 ± 19
Tear osmolarity, mOsm/L	295 ± 13	301 ± 14
NIBUT, s	13.1 ± 7.0	10.1 ± 5.3
Fluorescein score, Oxford	0.8 ± 1.1	2.1 ± 2.0
Lissamine green score, Oxford	1.0 ± 1.3	2.5 ± 2.0

OSDI, Ocular Surface Disease Index; NIBUT, noninvasive tear breakup time.

^*Mean ± standard deviation.