A non-contact ultrasonic tonometer comprising a ultrasonic transducer (10) that transmits an ultrasonic pulse wave to an examinees eye and receives the ultrasonic pulse wave reflected from the eye in a non-contact manner, is characterized in a transmission unit (70) that transmits a drive signal to the ultrasonic transducer to cause the ultrasonic transducer to repeat transmission of the ultrasonic pulse wave K times at a constant interval I/T in order to transmit a burst wave to the eye, where "T" is a burst frequency and "K" is a burst wave number that is the number of cycles of pulse wave and an arithmetic unit (70) that determines intraocular pressure (IOP) based on an output signal from the ultrasonic transducer when the ultrasonic transducer receives the burst wave reflected from the eye.
