Table 2.

Baseline disease severity in crosslinked and naïve fellow eyes.

Variable	Overall (N = 79)	CXL fellow eye Group 1 (N = 30)	Naïve fellow eye Group 2 (N = 49)	p value
K1	43.8 [42.5, 46.1]	45.0 [43.2, 47.3]	43.5 [42.3, 45.0]	0.026
K2	46.3 [44.4, 50.7]	48.2 [45.5, 53.4]	45.2 [43.3, 49.9]	0.006
Km	45.2 [43.3, 48.1]	46.4 [44.2, 49.9]	44.4 [42.9, 46.8]	0.01
Front Kmax	50.5 [46.5, 57.4]	56.2 [49.4, 64.5]	47.8 [44.9, 56.1]	0.002
Thinnest pachymetry	480.5 [444.0, 509.0]	467.0 [434.0, 494.0]	484.0 [447.0, 516.0]	0.13
Pachymetry at the apex	493.0 [458.0, 521.0]	479.0 [440.0, 507.0]	497.0 [458.0, 526.0]	0.16

Values are presented as the median [interquartile range]. K1 flat keratometry, K2 steep keratometry, Km mean keratometry, Front Kmax front maximum keratometry. All keratometry readings are presented in Diopters, whereas pachymetry values are presented in μm.