Table 1.
The comparison of values between IOLMaster 500 and IOLMaster 700
| n | Device | Mean | SD | Paired samples t test (p value) | Range (minimum–maximum) | ICC | Differences of the means | SD of difference of means | 95% CI of differences of means | Paired samples t test p value | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Anterior Chamber depth (mm) | 175 | IOLmaster 500 | 3.31 | 0.38 | <0.001 | 2.23–4.19 | 0.920 | −0.08 | 0.13 | −0.102 to −0.063 | <0.001 |
| IOLMaster 700 | 3.23 | 0.37 | 2.33–4.14 | ||||||||
| Axial length (mm) | 171 | IOLMaster 500 | 23.627 | 1.25 | 0.008 | 20.92–28.33 | 1.0 | −0.005 | 0.02 | −0.008 to −0.002 | 0.830 |
| IOLMaster 700 | 23.622 | 1.32 | 20.91–29.69 | ||||||||
| Keratometry (flat, D) | 188 | IOLMaster 500 | 43.46 | 1.77 | 0.001 | 48.35–37.17 | 0.992 | −0.05 | 0.22 | −0.079 to −0.014 | <0.001 |
| IOLMaster 700 | 43.41 | 1.73 | 37.25–48.21 | ||||||||
| Keratometry (steep, D) | 188 | IOLMaster 500 | 44.50 | 1.81 | <0.001 | 49.13–38.14 | 0.989 | −0.08 | 0.27 | −0.114 to −0.036 | <0.001 |
| IOLMaster 700 | 44.42 | 1.83 | 38.05–49.07 |
Difference of the means was computed by subtracting IOLMaster 500 values form IOLMaster 700 values.
ICC, intraclass correlation coefficient.