The Deformation of Human Eyeball when undergoing Scleral Buckling

Scleral buckling is a surgical technique to treat rhegmatogenous retinal detachment (RRD). Vision may be affected by the scleral buckle. Since the buckle is pushed into the sclera towards the detached retina, it may change the shape and the focal length of the eyeball. A paradigm mathematical model of human eyeball is set up to examine how the focal length of the eye is affected under the action of the external force. In particular, this model has been developed using the membrane equations of equilibrium for axisymmetric spherical shells. Using numerical analysis the resulting displacements of the eyeball will be examined. The results of the scleral buckle may prove useful to predict changes in focal length.