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Table 5 The detailed data regarding the Corneal topography indices on baseline and follow-up visits

From: Corneal cross-linking effects on ocular surface parameters and corneal topographic and optical characteristics in progressive keratoconus cases: a prospective single-arm study

 

Baseline (n:30)

1 Month (n:30)

5–6 Months (n:27)

p-value

Mean ISV

(95%CI)

70.50

(61.40–79.60)

70.87

(61.64–80.09)

61.70

(52.79–70.62)

0.012A

Comparison to baseline p-value

-

0.897 T

0.036A

Median IVA

(IQR)

0.680

(0.452–0.880)

0.700

(0.465–0.922)

0.660

(0.490–0.870)

0.618F

Median KI

(IQR)

1.160

(1.107–1.235)

1.180

(1.107–1.257)

1.140

(1.090–1.240)

0.162F

Mean IHA

(95%CI)

31.43

(26.15–36.71)

28.18

(22.88–33.48)

28.41

(22.46–34.37)

0.267A

Median IHD

(IQR)

0.093

(0.068–0.126)

0.082

(0.062–0.122)

0.072

(0.052–0.113)

0.495F

Median Rmin

(IQR)

6.225

(6.052–6.800)

6.305

(6.077–6.800)

6.450

(6.200–6.930)

0.335F

  1. ISV Index of surface variance, IVA Index of vertical asymmetry, KI Keratoconus index, IHA Index of height asymmetry, IHD Index of height decentration, Rmin Minimum radius of curvature, F Related-Samples Friedman's Two-Way Analysis of Variance by Ranks, A One-way Repeated Measures ANOVA (Post-Hoc: Bonferroni), T Paired-samples Students' T-Test