Mechanical behaviour of healthy versus alkali-lesioned corneas by a porcine organ culture model

Cornea is a composite tissue exhibiting nonlinear and time-dependent mechanical properties. Corneal ulcers are one of the main pathologies that affect this tissue, disrupting its structural integrity and leading to impaired functions. In this study, uniaxial tensile and stress-relaxation tests are developed to evaluate stress-strain and timedependent mechanical behaviour of porcine corneas.