Representative corneal axial strain maps and average strain response of simulated ocular pulse cycles in (a) porcine and (b) human corneas. base, baseline IOP; freq, simulated ocular pulse frequency; high, highest value of one of the parameters (baseline IOP = 20 mm Hg, OPA = 5 mm Hg, or frequency = 1.67 Hz); low, lowest value of one of the parameters (baseline IOP = 10 mm Hg, OPA = 1 mm Hg, or frequency = 0.75 Hz); nom, nominal condition (baseline IOP = 15 mm Hg, OPA = 3 mm Hg, and frequency = 1.2 Hz); OPA, simulated OPA.