Table 1.
The mean and standard deviation (SD) of central corneal thickness (CCT) in three measurements and repeatability measurements obtained with Pentacam and Orbscan
| CCT (micron) | First | Second | Third | RI | p-value* | ICC |
|---|---|---|---|---|---|---|
| Pentacam | ||||||
| Grade 1 | 496.6 ± 32.91 | 497 ± 32.17 | 497.5 ± 32.67 | 12.8 | 0.758 | 0.979 |
| Grade 2 | 459.92 ± 39.55 | 461.69 ± 40.75 | 462.69 ± 39.28 | 9.9 | 0.015 | 0.993 |
| Grade 3 | 433.29 ± 29.53 | 428.94 ± 41.03 | 431.88 ± 37.79 | 24.2 | 0.742 | 0.943 |
| Orbscan | ||||||
| Grade 1 | 487.85 ± 43.46 | 485.81 ± 40.17 | 481 ± 42.6 | 23.6 | 0.178 | 0.958 |
| Grade 2 | 443.78 ± 50.77 | 442.19 ± 45.87 | 440.78 ± 47.32 | 26.3 | 0.480 | 0.960 |
| Grade 3 | 413.25 ± 55.74 | 413.25 ± 53.8 | 428.25 ± 51.65 | 59.3 | 0.286 | 0.849 |
RI: Repeatability index.
ICC: Intraclass Correlation Coefficient.
CCT: Central corneal thickness.
*The p-value was calculated by repeated measure ANOVA.