Measurement of corneal and limbal epithelial thickness by anterior segment optical coherence tomography and in vivo confocal microscopy

Table 2 CET and LET comparisons between subgroups ≤40 and >40 years old

		CC (μm)	SL(μm)	IL(μm)	TL(μm)	NL(μm)
≤40	IVCM	52.2 ± 4.4	77.2 ± 13.6	74.6 ± 14.5	58.2 ± 9.5	58.9 ± 13.5
	AS-OCT	54.9 ± 4.0	73.6 ± 6.0	76.1 ± 9.9	61.8 ± 7.6	60.0 ± 6.9
	P	0.282	0.064^a	0.701	0.346	0.725
>40	IVCM	51.6 ± 5.2	67.3 ± 14.7	67.6 ± 14.9	53.2 ± 8.6	52.3 ± 10.5
	AS-OCT	56.3 ± 3.8	76.9 ± 8.1	74.5 ± 12.5	60.3 ± 5.6	62.4 ± 4.9
	P	0.006†	0.005†	0.007†	0.001†	0.003†
IVCM	≤40	52.2 ± 4.4	77.2 ± 13.6	74.6 ± 14.5	58.2 ± 9.5	58.9 ± 13.5
	>40	51.6 ± 5.2	67.3 ± 14.7	67.6 ± 14.9	53.2 ± 8.6	52.3 ± 10.5
	P	0.731	0.044*	0.077	0.104	0.165
AS-OCT	≤40	54.9 ± 4.0	73.6 ± 6.0	76.1 ± 9.9	61.8 ± 7.6	60.0 ± 6.9
	>40	56.3 ± 3.8	76.9 ± 8.1	74.5 ± 12.5	60.3 ± 5.6	62.4 ± 4.9
	P	0.28	0.178	0.656	0.511	0.235

CC central cornea, SL superior limbus, IL inferior limbus, TL temporal limbus, NL nasal limbus
^a Wilcoxon Signed Ranks Test was used because this paired group didn’t conform to Gaussian distribution, * P < 0.05, † P < 0.01, ‡ P < 0.001

ISSN: 1471-2415