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. 2020 Feb 3;15(2):e0227488. doi: 10.1371/journal.pone.0227488

Fig 4. Propagating membrane waves on the eye phantom.

Fig 4

A) Detected signals (vertically offset for demonstration) at different IOP values measured with iCare TA01 tonometer on the phantom. The red line is a guide to the eye and demonstrates the time of arrival of a specific peak of the wave packet as a function of IOP. B) Comparison between the pressure values obtained with our method and those obtained by the iCare TA01 tonometer. The result suggests a change in speed of sound of the wave travelling on the membrane when the IOP is altered.