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Preoperative and postoperative CH and CRF by group.
| Value | Myopic Group |
Hyperopic Group |
||||||
|---|---|---|---|---|---|---|---|---|
| Mean ± SD | Mean ± SD | P Value* | ||||||
| Preop | Postop | Change | P Value* | Preop | Postop | Change | ||
| CH | 11.4 ± 1.5 | 9.1 ± 1.3 | −2.4 ± 1.7 | <.001 | 11.8 ± 1.6 | 11.1 ± 1.1 | −0.7 ± 0.7 | .008 |
| CRF | 11.0 ± 1.9 | 7.8 ± 2.1 | −3.2 ± 1.6 | <.001 | 12.2 ± 2.3 | 11.5 ± 1.7 | −0.6 ± 1.1 | .09 |
CH = corneal hysteresis; CRF = corneal resistance factor; LASIK = laser in situ keratomileusis
Paired Student t test
