Intervisit/intraobserver RC of in vivo lens measurements according to age categories
| Intraobserver (95% CI) | Intervisit (95% CI) | |||
| Younger (<35 years) | Older (≥35 years) | Younger (<35 years) | Older (≥35 years) | |
| ±0 D | ||||
| Anterior curvature (mm) | 1.571 (0.957 to 2.185) | 0.733 (0.031 to 1.435) | 1.133 (0.681 to 1.586) | 0.595 (0.078 to 1.112) |
| Posterior curvature (mm) | 0.330 (0.117 to 0.469) | 0.240 (0.072 to 0.406) | 0.230 (0.129 to 0.331) | 0.218 (0.103 to 0.333) |
| Lens thickness (mm) | 0.094 (0.053 to 0.135) | 0.052 (0.005 to 0.098) | 0.077 (0.048 to 0.106) | 0.043 (0.010 to 0.077) |
| −1 D accommodation stimuli | ||||
| Anterior curvature (mm) | 1.706 (0.979 to 2.434) | 0.662 (−0.064 to 1.388) | 1.072 (0.562 to 1.583) | 0.700 (0.116 to 1.284) |
| Posterior curvature (mm) | 0.314 (0.210 to 0.418) | 0.227 (0.065 to 0.388) | 0.253 (0.156 to 0.350) | 0.200 (0.090 to 0.312) |
| Lens thickness (mm) | 0.124 (0.075 to 0.174) | 0.055 (−0.007 to 0.116) | 0.061 (0.036 to 0.086) | 0.045 (0.016 to 0.074) |
| −3 D accommodation stimuli | ||||
| Anterior curvature (mm) | 1.328 (0.893 to 1.763) | 0.508 (−0.009 to 1.026) | 1.045 (0.694 to 1.397) | 0.453 (0.034 to 0.871) |
| Posterior curvature (mm) | 0.434 (0.292 to 0.576) | 0.121 (−0.041 to 0.284) | 0.242 (0.130 to 0.354) | 0.194 (0.066 to 0.322) |
| Lens thickness (mm) | 0.083 (0.055 to 0.111) | 0.042 (0.009 to 0.074) | 0.081 (0.050 to 0.113) | 0.065 (0.030 to 0.101) |
| −5 D accommodation stimuli | ||||
| Anterior curvature (mm) | 0.950 (0.547 to 1.353) | 0.660 (0221 to 1.098) | 1.008 (0.622 to 1.394) | 0.497 (0.051 to 0.943) |
| Posterior curvature (mm) | 0.334 (0.210 to 0.458) | 0.202 (0.060 to 0.345) | 0.262 (0.130 to 0.395) | 0.280 (0.129 to 0.431) |
| Lens thickness (mm) | 0.079 (0.036 to 0.122) | 0.064 (0.013 to 0.115) | 0.149 (0.016 to 0.283) | 0.011 (0.000 to 0.024) |
D, dioptre; RC, reproducibility coefficient.