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Differences (in diopters) in 168 right eyes between preoperative keratometry readings and the calculated ones without the knowledge of preoperative parameters.
| Current study | Preoperative mean keratometry = 43.5 | |
|---|---|---|
| Mean | −0.02 | −0.43 |
| SD | 1.31 | 1.40 |
| Min | −3.43 | −3.98 |
| Max | 3.68 | 3.12 |
| p | 0.82 | <0.01 |
