Figure 10

The change of elastic modulus during the loading phase with hydration time is correlated with central corneal thickness shown for IOP of 15 mmHg. The top x-axis represents the central corneal thickness at the corresponding hydration time (bottom x-axis) at 15 mmHg. Error bars represent standard deviation (n = 8 corneas). There was a significant difference between elastic modulus values between 0 hour and first hour of hydration, p ≤ 0.0026. Elastic modulus become relatively stable (slight increase) after the first hour of hydration.