Fig. 4.

Comparison of rabbit corneal tissue properties from elastography imaging and mechanical extensiometry measurements before and after cross-linking treatment (n = 4). (A) Comparison of elastic wave amplitude normalized to maximum amplitude. (B) Elastic wave propagation velocity in untreated and cross-linked corneal tissue. (C) Estimation of Young’s modulus of the rabbit cornea from mechanical extensiometry measurements of central tissue strips; error bars represent ± one standard deviation.