Knowledge of corneal and ocular biomechanics is important in understanding the development and progression in many disease processes, as well as in screening for pathologic conditions and monitoring response to treatment. However, measuring classic properties such as modulus of elasticity is challenging in the living eye, where destructive testing is not appropriate. Many technologies are under development, but are years away from translation to the clinic. Two clinical devices are available commercially, and both use an air puff as the applied load on the cornea. The spatial and temporal profiles of the air puffs are distinct, as are the responses.
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