Table 1.
Geometrical and material properties of the six corneal layers used in the FEM models.
Layers | Thickness (T) [μm] | Density [kg/m3] | Poisson’s ratio | Stiffness [kPa] at IOP** [mmHg] | |||
---|---|---|---|---|---|---|---|
7.5 | 15 | 22.5 | 45 | ||||
Epithelium | 53 | 1.149 | 0.49 | 21.3 | 64.4 | 108.9 | 272.3 |
Basement membrane | 2 | 1.149 | 0.49 | 9.7 | 29.3 | 49.5 | 123.8 |
Bowman’s membrane | 12 | 1.149 | 0.49 | 141.9 | 429 | 726 | 1815 |
Stroma* | 480 | 1.149 | 0.49 | — | — | — | — |
Descemet’s | 12 | 1.149 | 0.49 | 64.5 | 195 | 330 | 825 |
Endothelium | 5 | 1.149 | 0.49 | 12.9 | 39 | 66 | 165 |