Comparison of corneal measurements in normal and keratoconus eyes using Anterior Segment Optical Coherence Tomography (AS-OCT) and Pentacam HR topographer

Table 6 Comparison of K posterior values by PENTACAM and OCT among the studied groups

Variable	KC group	Control group	t-test^a	P value
Variable	(n = 62)	(n = 48)	t-test^a	P value
K posterior by PENTACAM:
Mean ± SD
Range	-6.88 ± 0.83	-6.25 ± 0.20	-5.129	0.001
	(-8.9) – (-4.4)	(-6.7) – (-5.9)		(S)
K posterior by OCT:
Mean ± SD
Range	-7.09 ± 1.1	-5.90 ± 1.81	-4.329	0.001
	(-9.8) – (-4.9)	(-6.6) – (6.3)		(S)
P^b:	0.235 (NS)	0.187 (NS)

ISSN: 1471-2415