TABLE 1

Permeability coefficient of six corneal models

Each value represents the mean ± S.D. of three independent experiments.

Type of ModelPermeability Coefficient
CyanocobalaminFD-4FD-10FD-20FD-40
×10−6 cm/s
Acellular modelBM9.38 ± 0.474.22 ± 0.181.20 ± 0.310.46 ± 0.060.12 ± 0.002
AS4.45 ± 0.321.46 ± 0.140.81 ± 0.110.24 ± 0.030.17 ± 0.03
Culture modelCEpi0.82 ± 0.0970.36 ± 0.010.31 ± 0.020.36 ± 0.060.054 ± 0.01
CEpi-EndoNot detected0.25 ± 0.040.13 ± 0.020.084 ± 0.010.050 ± 0.01
CEpi-ASNot detected0.14 ± 0.060.046 ± 0.070.009 ± 0.0020.017 ± 0.009
CEpi-AS -EndoNot detected0.033 ± 0.020.019 ± 0.010.016 ± 0.0050.033 ± 0.028