Crosslinking vs. Observation in Fellow Eyes of Keratoconus Patients
Table 3
Baseline disease metrics in progressing and nonprogressing naïve fellow eyes (Group 2).
Variable
Nonprogressors (N = 30)
Progressors (N = 19)
value
K1
42.7 [41.8, 43.9]
44.8 [43.5, 55.5]
0.005
K2
44.1 [42.8, 46.0]
50.2 [45.2, 57.9]
<0.001
Km
43.3 [42.3, 45.3]
47.2 [44.3, 56.7]
<0.001
Front Kmax
45.9 [44.0, 47.8]
56.1 [48.3, 65.7]
<0.001
Astigmatism
1.3 [0.8, 1.9]
2.6 [1.9, 6.0]
<0.001
Pachymetry at the pupil
507.5 [492.0, 539.0]
462.0 [436.0, 508.0]
0.003
Pachymetry at the apex
508.0 [492.0, 542.0]
457.0 [392.0, 508.0]
0.003
Thinnest pachymetry
498.0 [481.0, 525.0]
447.0 [378.0, 480.0]
<0.001
Cornea volume
57.5 [56.1, 60.7]
56.7 [53.3, 60.8]
0.32
Chamber volume
202.5 [176.0, 228.0]
170.0 [152.0, 206.0]
0.015
LogMar
0.000 [0.000, 0.000]
0.097 [0.000, 0.301]
0.09
Values are presented as the median [interquartile range]. Chamber volume, anterior chamber volume; LogMar, logarithm of the minimum angle of resolution. All keratometry readings are presented in Diopters and pachymetry values are presented in μm, and volume in mm3.
