. 2019 Mar;58(1):63–71. doi: 10.20471/acc.2019.58.01.09

Table 4. Correlation between NIBUT and TBUT in the first, second and third measurement of the right eye in study patients.

	Correlation between NIBUT and TBUT
	Spearman R	t(N-2)	p
1^st testing	0.749	7.834	<0.001
2^nd testing	0.772	8.423	<0.001
3^rd testing	0.832	10.399	<0.001

NIBUT = noninvasive break-up time; TBUT = tear break-up time