Table 1: Correlation between refractive cylinder values and corneal indices.
| Index |
Pearson |
p |
| SVI |
0.680** |
.000 |
| VAI |
0.481** |
0.000 |
| KI |
0.456** |
0.000 |
| CKI |
0.509** |
0.000 |
| IHA |
0.425** |
0.000 |
| IHD |
0.500** |
0.000 |
| minR |
0.476** |
0.000 |
**. Correlation is significant at the 0.01 level (bilateral).
Abbreviations: SVI (Surface variation index), VAI (Vertical asymmetry index), KI (Keratoconus index), CKI (Central keratoconus index), IHA (Index of height asymmetry), IHD (Index of height decentration), minR (Minimum radius).