AN ULTRASONIC SCANNING SYSTEM HAS BEEN DEVELOPED SPECIFICALLY FOR THE COMPLEX GEOMETRICAL CONFIGURATIONS ENCOUNTERED IN OPTHALMOLOGY. CLINICAL APPLICATION AND FACILITY OF OPERATION ARE IMPORTANT CRITERIA IN ITS DESIGN. A HAND-OPERATED SCANNING MECHANISM AND SPECIAL CIRCUITRY ARE USED TO ATTAIN THE HIGH-RESOLUTION DISPLAYS (7-20 MHZ) NEEDED IN ULTRASONIC INVESTIGATIONS OF THE EYE REGION. ACCESSIBLE CONTROLS ARE PROVIDED FOR CLINICALLY RELEVANT FUNCTIONS AND A CRT GIVES B-SCAN DISPLAYS.
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