Study on intraocular pressure measurement using acoustic radiation pressure

Abstract

In this study, we conducted a study on tonometry using acoustic radiation pressure. We created a device using a parametric speaker, and thought that it would be possible to measure intraocular pressure by measuring the frequency of the surface vibration by applying acoustic radiation pressure to an object. In the measurement, the object was set to a water balloon, and the vibration of the surface was measurement by observing the reflection of an irradiated laser beam using a high-speed camera. And the data was subjected to Fourier transform to measure the eigenfrequency. Then the relationship between the eigenfrequency and the pressure in the water balloon was discussed.