Table 1.
Mean central corneal thickness taken with Topcon SP-3000P noncontact specular microscope, ultrasound pachymeter DGH-500, and Artemis-2 very high-frequency ultrasound
| Device | Mean CCT μm (±SD) | Minimum | Maximum | 95% CI of mean |
|---|---|---|---|---|
| Session 1 | ||||
| SP-3000P | 520 ± 29 | 466 | 567 | 509–530 |
| DGH-500 | 560 ± 33 | 507 | 613 | 548–571 |
| Artemis-2 | 558 ± 33 | 502 | 619 | 546–569 |
| Session 2 | ||||
| SP-3000P | 520 ± 30 | 453 | 572 | 508–531 |
| USP | 561 ± 37 | 486 | 621 | 548–574 |
| Artemis-2 | 554 ± 34 | 506 | 616 | 542–566 |
Abbreviations: CCT, central corneal thickness; CI, confidence interval; SD, standard deviation; USP, ultrasound pachymeter.