| 摘要 |
<p>A non-contact ultrasonic tonometer (100) for measuring intraocular pressure of an examinee's eye (E) in non-contact manner by use of an ultrasonic wave comprises: a probe (10) including a vibrator (11) for making the ultrasonic wave incident on the eye and a sensor (13) for detecting the ultrasonic wave reflected from the eye; detection means (20, 40, 50, 55, 70) for detecting an alignment state of the probe with respect to the eye; determination means for determining whether the alignment state is proper or not based on a detection result of the detection means; trigger signal generation means for generating a trigger signal to start measurement based on a determination result of the determination means; and control means for controlling the probe to emit the ultrasonic wave based on generation of the trigger signal.</p> |
