a device that uses ultrasound to determine the thickness of the cornea in any given location
an instrument used during an eye exam to measure thickness of the clear front covering of your eye, known as the cornea
an ultrasonic instrument used during an eye exam to measure the thickness of the eye's clear front surface, known as the cornea
A pachymeter is a medical device used to measure the thickness of the eye's cornea. It is used prior to LASIK surgery, and is useful in screening for patients suspected of developing glaucoma. Modern design incorporates ultrasound technology for measurement of the thickness.