A method of detecting corneal hysteresis comprising the steps of:(A) exerting pressure on a cornea to deform said cornea from a natural state of convexity through a first state of applanation to a state of concavity(B) decreasing said exerted pressure to allow said cornea to return from said state of concavity through a second state of applanation to said natural state of convexity(C) observing a first pressure associated with said first state of applanation and a second pressure associated with said second state of applanation and(D) calculating a pressure differential between said first and second pressures, said pressure differential being indicative of said corneal hysteresis.
