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Table 5 Calculated lens powers using the biometry and phakometry data of the whole population

From: A machine learning-based algorithm used to estimate the physiological elongation of ocular axial length in myopic children

Method Symbol Eye Model c constants (mm) Average (D)
Modified Stenstrom PL,Sten Gullstrand-Emsley cSten = 2.145 20.68 ± 1.44
Bennett-Rabbetts cSten = 2.221 20.82 ± 1.45
Customized cSten = 2.875 ± 0.763 22.07 ± 1.56
Bennett-Rabbetts PL,BR Gullstrand-Emsley cBR = 2.230 22.34 ± 1.54
Bennett-Rabbetts cBR = 2.306 22.52 ± 1.56
Customized cBR = 2.891 ± 0.778 23.95 ± 1.68
  1. n = 1011 eyes; D = diopters