Table 4: Correlation between asphericity coefficient Q-values and corneal indices.
| Index |
Pearson |
p |
| SVI |
−0.356** |
0.000 |
| VAI |
−0.169* |
0.047 |
| KI |
−0.229** |
0.007 |
| CKI |
−0.371** |
0.000 |
| IHA |
−0.140 |
0.102 |
| IHD |
−0.218* |
0.010 |
| minR |
−0.176 |
0.012 |
** Correlation is significant at the 0.01 level (bilateral).
* Correlation is significant at the 0.05 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).