ultrasound biomicroscopy

Definition of ultrasound biomicroscopy
National Cancer Institute

ultrasound biomicroscopy

(UL-truh-sownd BY-oh-my-KROS-koh-pee)
A type of ultrasound eye exam that makes a more detailed image than regular ultrasound. High-energy sound waves are bounced off the inside of the eye and the echo patterns are shown on the screen of an ultrasound machine. This makes a picture called a sonogram.

Source: NCI Dictionary of Cancer Terms