PROBLEM TO BE SOLVED: To provide a non-contact ultrasonic tonometer capable of accurately measuring intraocular pressure by ultrasonic waves.SOLUTION: A non-contact ultrasonic tonometer comprises: a vibrator that emits ultrasonic waves for bringing about infinitesimal deformation of the cornea of an eye to be examined measurement means for measuring the deformation volume and deformation speed of the cornea deformed by the ultrasonic waves and intraocular pressure calculation means for calculating the intraocular pressure of the eye to be examined, on the basis of the deformation volume and the deformation speed, which are measured by the measurement means.
