Time course of principal stress sustained by the limbus. A, Elements at the junction of cornea and sclera, corresponding to the limbus, were measured for stress upon shuttlecock impact. The stress plot in panel A demonstrates an immediate compressive stress of around 2 MPa (point B for panel B visual), followed by a maximal tensile stress of around 5 MPa (point C for panel C visual). B, Simulation of model eye at point B shows corneal buckling from impact that transfers compressive forces to the limbus. C, Simulation of model eye at point C shows continued corneal buckling that stresses the limbus.