Analysis of Tear Function Outcomes following Collagen Cross-Linking Treatment in Ectatic Corneas

Table 5

Correlation among ocular parameters.

	BCVA	Kmax (D)	OSDI (score)	Tear meniscus height (mm)	1st NIKBUT (s)	Average NIKBUT (s)	Bulbar redness (score)
BCVA	1.000	−0.772	−0.152	0.149	−0.58	−0.081	0.023
Kmax (D)		1.000	0.152	−0.280	0.242	0.169	−0.088
OSDI (score)			1.000	0.104	−0.022	0.157	−0.101
Tear meniscus height (mm)				1.000	0.197	0.233	−0.191
1st NIKBUT (s)					1.000	0.696	−0.049
Average NIKBUT (s)						1.000	0.190
Bulbar Redness (score)							1.000

BCVA: Best-corrected visual acuity (decimal visual acuity style); Kmax: maximum keratometry; OSDI: ocular surface disease index; NIKBUT: noninvasive Keratograph breakup time. value means that the test level has a significant difference at 0.05, and value means that the test level has a significant difference at 0.01.