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. 2016 Mar 31;11(3):e0152696. doi: 10.1371/journal.pone.0152696

Table 5. Ocular surface parameters in the DED and non-DED groups.

Parameters DED group (n = 28) Non-DED group (n = 42) P-value*
Age, y 55.57±17.37 51.90±19.58 0.425
Male 14 25 0.432
Female 14 17
Postoperative duration, m 37.89±20.14 38.86±29.06 0.879
VA 0.40 (0.13–0.90) 0.35 (0.08–0.80) 0.489
IOP, mmHg 11.78±3.40 13.29±4.08 0.111
TFBUT, s 4 (3.25–5) 5.5 (4.75–9) < 0.001Δ
Schirmer’s tear test, mm 8 (3.25–16.75) 9.5 (5–19.25) 0.405
Corneal staining 1 (1–2) 0 (0–0) < 0.001Δ
Meibomian gland obstruction 2 (2–2) 2 (1–2) 0.077
POAG 12 24 0.241
CACG 11 12 0.350
PACG 5 6 0.688

DED, dry eye disease; VA: LogMAR visual acuity; IOP, intraocular pressure; TFBUT, tear film break-up time test; POAG, primary open-angle glaucoma; CACG, chronic angle closure glaucoma, PACG, primary acute angle closure glaucoma.

Values are shown as the mean ± SD, the median (interquartile range) or the number of participants.

* P-values were derived from Student’s t-tests, Mann-Whitney U-tests or Chi Square tests.

ΔStatistical significance (P < 0.05).