Fig. 2From: Impact of hypothermia on the biomechanical effect of epithelium-off corneal cross-linkingRepresentation of the tangential elastic modulus in all groups studied: low room temperature riboflavin-soaked corneas without irradiation (Group 1, 4 °C control), low room temperature riboflavin-soaked corneas irradiated with 9 mW/cm2 for 10 min (Group 2, 4 °C CXL), standard room temperature riboflavin-soaked corneas without irradiation (Group 3, 24 °C control) and standard room temperature riboflavin-soaked corneas irradiated with 9 mW/cm2 for 10 min (Group 4, 24 °C CXL)Back to article page