<prompt> Corneal hysteresis is studied usingGoldmann perimetryCorneal topographyDynamic Contour TonometryGoldmann Applanation tonometry  <response>: Corneal hysteresis assesses the biomechanical strength of the cornea and is assessed by Dynamic Contour TonometryDCT. Dynamic contour tonometry DCT is a contin- uous dynamic and direct tonometric principle. It reads the IOP at the interface between the sensitive tonometer tip and the surface of the cornea. Ref khurana 6th edition pg 345 