Comparative study of anterior segment measurements using 3 different instruments in myopic patients after ICL implantation

Table 1 Repeatability of Pentacam, UBM and AS-OCT in measuring ACD, C-ICL and Vault

Device	Parameter	Pearson (r)	Difference(mm)	t-value	P-value
AS-OCT	ACD	0.98	0 ± 0.04	−1.20	0.23
	C-ICL	0.99	0 ± 0.04	−0.48	0.64
	Vault	0.99	0 ± 0.03	1.44	0.15
Pentacam	ACD	0.98	0 ± 0.04	−0.85	0.40
	C-ICL	0.99	0. ± 0.04	−0.90	0.37
	Vault	0.99	0 ± 0.03	−0.77	0.45
UBM	ACD	0.98	0 ± 0.05	0.36	0.72
	C-ICL	0.99	0 ± 0.05	0.83	0.41
	Vault	0.99	0 ± 0.04	0.22	0.83

AS-OCT: Anterior segment optical coherence tomography; UBM: Ultrasound biomicroscopy; Pearson (r): Pearson correlation coefficient; ACD: Anterior chamber depth; C-ICL: Distance between the corneal endothelium and anterior surface of ICL; Vault: Distance between the back surface of ICL and the front surface of the lens. P values less than 0.05 were considered statistically significant

ISSN: 1471-2415