Frequency-domain response. (a) The amplitude of sound-induced vibration measured at the center of the cornea in a bovine eye globe ex vivo, in comparison with the vibration of the sample mount. (b) The induced stress calculated from the amplitude spectra. There are three distinct resonance peaks at 86, 200, and 310 Hz, respectively, which correspond to the first three symmetric modes, [0,1], [0,2], and [0,3] modes. The SPL was 100 dB.