Table 2. Outcomes of Ocular Surface Disease Index scores and keratograph analysis in the glaucoma and control groups.

Values are represented as mean ± standard deviation.

The Mann-Whitney test was employed to determine statistical significance. Bold values indicate statistically significant findings at p < 0.05.

Glaucoma group = total OSDI (0-77.08); vision-related OSDI (0-43.75); ocular discomfort-related OSDI (0-45.83); first NIKBUT (1.34-24.92); average NIKBUT (1.91-24.92).

Control group = total OSDI (0-64.58); vision-related OSDI (0-41.67); ocular discomfort-related OSDI (0-33.33); first NIKBUT (3.25-24.92); average NIKBUT (4.62-24.92).

OSDI = Ocular Surface Disease Index; NIKBUT = non-invasive keratograph tear break-up time

	Glaucoma Group (n = 66)	Control Group (n = 26)	P-value
Total OSDI (score)	34.13 ± 2.65	31.65 ± 4.27	0.677
Vision-related OSDI (score)	18.88 ± 1.64	17.92 ± 2.41	0.760
Ocular discomfort-related OSDI (score)	15.25 ± 1.57	13.72 ± 2.35	0.598
Bulbar redness (units)	1.86 ± 0.07	1.58 ± 0.07	0.008
First NIKTBUT (seconds)	10.19 ± 0.85	10.96 ± 1.37	0.499
Average NIKBUT (seconds)	15.27 ± 0.71	16.24 ± 1.02	0.474