This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cornea and sclera, Subject name: Ophthalmology
[{'content': 'Corneal hysteresis is studied using \nSelect and explain. \nA. Goldmann perimetry, B. Corneal topography, C. Dynamic Contour Tonometry, D. Goldmann Applanation tonometry', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Corneal hysteresis assesses the biomechanical strength of the cornea and is assessed by Dynamic Contour Tonometry(DCT). 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', 'role': 'assistant'}]