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Table 4 Estimations of physiological elongation of axial length (in mm/year) for 6-year-old and 18-year-old males and females

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

  SER (D)
K-mean -1.00 -2.00 -3.00 -4.00 -5.00 -6.00 Mean
(D) Age (years)
  6 18 6 18 6 18 6 18 6 18 6 18 6 18
40.00 (M) 0.089 0.024 0.094 0.028 0.100 0.032 0.105 0.037 0.111 0.041 0.116* 0.045 0.103 0.034
40.00 (F) 0.083 0.018 0.088 0.022 0.094 0.026 0.099 0.030 0.104 0.034 0.110* 0.038 0.096 0.028
42.00 (M) 0.082 0.020 0.087 0.024 0.098 0.032 0.098 0.032 0.104 0.036 0.109 0.040 0.095 0.030
42.00 (F) 0.076 0.013 0.081 0.017 0.086 0.021 0.092 0.025 0.097 0.029 0.103 0.033 0.089 0.023
44.00 (M) 0.074 0.015 0.080 0.019 0.085 0.027 0.091 0.027 0.096 0.031 0.101 0.035 0.089 0.025
44.00 (F) 0.068 0.008 0.073 0.012 0.079 0.016 0.084 0.020 0.090 0.024 0.095 0.028 0.081 0.018
46.00 (M) 0.066 0.010* 0.072 0.014 0.077 0.022 0.083 0.022 0.088 0.026 0.093 0.030 0.080 0.020
46.00 (F) 0.060 0.003* 0.065 0.007 0.071 0.011 0.076 0.015 0.081 0.019 0.087 0.023 0.073 0.013
Mean (M) 0.078 0.017 0.083 0.021 0.089 0.029 0.094 0.029 0.100 0.033 0.105 0.037 0.092 0.027
Mean (F) 0.072 0.011 0.077 0.015 0.082 0.019 0.088 0.023 0.093 0.027 0.099 0.031 0.085 0.021
  1. The maximum and minimum values for females and males are marked by an asterisk (*). The spherical equivalent refraction error (SER) were fixed at -1.00D, -2.00D, -3.00D, -4.00D, -5.00D and -6.00D and the mean K reading (K-mean) were fixed at 40.00D, 42.00D, 44.00D and 46.00D
  2. SER spherical equivalent refraction error, K-mean mean K reading, M male, F female, D diopter