PROBLEM TO BE SOLVED: To provide a noncontact ultrasonic tonometer capable of properly irradiating an eye to be examined, with an ultrasonic wave.SOLUTION: The ultrasonic tonometer for measuring an intraocular pressure of an eye to be examined by using ultrasonic waves includes: an ultrasonic actuator which has an ultrasonic element and irradiates the eye to be examined with an ultrasonic wave； and current adjusting means S6 which adjusts a current to be applied to the ultrasonic element and controls a sound pressure or an acoustic radiation pressure of the ultrasonic wave. Thus, the ultrasonic wave can be appropriately applied to the eye to be examined.SELECTED DRAWING: Figure 7COPYRIGHT: (C)2020,JPO&INPIT【課題】被検眼に対して超音波を適正に照射できる非接触式超音波眼圧計を提供する。【解決手段】超音波を用いて被検眼の眼圧を測定する超音波眼圧計であって、超音波素子を有し、被検眼に対して超音波を照射する超音波アクチュエータと、超音波素子に印加する電流を調整し、超音波の音圧または音響放射圧を制御する電流調整手段Ｓ６を備えることを特徴とする。これによって、被検眼に対して超音波を適正に照射できる。【選択図】図７
