Table 2

Intervisit/intraobserver RC and ICC of in vivo lens measurements

RC (95% CI)ICC (95% CI)
IntraobserverIntervisitIntraobserverIntervisit
 ±0 D
 Anterior curvature (mm)1.208 (0.728 to 1.688)0.900 (0.550 to 1.249)0.857 (0.724 to 0.929)0.914 (0.828 to 0.958)
 Posterior curvature (mm)0.287 (0.178 to 0.396)0.225 (0.150 to 0.299)0.879 (0.763 to 0.940)0.933 (0.864 to 0.968)
 Lens thickness (mm)0.076 (0.044 to 0.107)0.062 (0.040 to 0.085)0.987 (0.972 to 0.994)0.992 (0.983 to 0.996)
 −1 D accommodation stimuli
 Anterior curvature (mm)1.254 (0.682 to 1.853)0.911 (0.527 to 1.294)0.832 (0.680 to 0.908)0.898 (0.797 to 0.950)
 Posterior curvature (mm)0.276 (0.189 to 0.363)0.230 (0.158 to 0.303)0.898 (0.799 to 0.950)0.929 (0.856 to 0.965)
 Lens thickness (mm)0.094 (0.055 to 0.133)0.054 (0.035 to 0.073)0.980 (0.958 to 0.990)0.994 (0.988 to 0.997)
 −3 D accommodation stimuli
 Anterior curvature (mm)0.989 (0.627 to 1.351)0.800 (0.513 to 1.087)0.865 (0.734 to 0.934)0.906 (0.809 to 0.955)
 Posterior curvature (mm)0.299 (0.178 to 0.419)0.2221 (0.138 to 0.304)0.832 (0.679 to 0.916)0.921 (0.841 to 0.962)
 Lens thickness (mm)0.065 (0.043 to 0.087)0.074 (0.051 to 0.098)0.992 (0.983 to 0.996)0.995 (0.989 to 0.997)
 −5 D accommodation stimuli
 Anterior curvature (mm)0.824 (0.541 to 1.108)0.789 (0.486 to 1.092)0.831 (0.677 to 0.915)0.828 (0.662 to 0.916)
 Posterior curvature (mm)0.277 (0.182 to 0.372)0.270 (0.172 to 0.368)0.874 (0.754 to 0.938)0.840 (0.692 to 0.921)
 Lens thickness (mm)0.072 (0.041 to 0.104)0.132 (0.034 to 0.232)0.984 (0.983 to 0.996)0.942 (0.877 to 0.972)
  • D, dioptre; ICC, intraclass correlation coefficient; RC, reproducibility coefficient.