Figure 5. Time and spectral characteristics of the propagating mechanical wave.

Two dimensional maps of the temporal profiles (lateral coordinate along the trajectory shown in panel (a), X_tr, versus time, t) at a depth of about 0.1 mm from the surface in porcine eye cornea at different intraocular pressures: (b) −IOP = 10 mmHg, (c) −IOP = 40 mmHg for propagation at 0°. Typical temporal profiles of transverse mechanical waves (d) and their spectra (e). Decreased displacement amplitude and a shift of the carrier signal frequency to higher frequencies are observed with increased intraocular pressure.