... Ultrasonic A-B Scan for Ophthalmology. Ultrasonic A-B Scan for OphthalmologyDescriptionHIGH RESOLUTION IMAGESB, B+B, B+A, A FEATURES8 STEPS ZOOMPOST PROCESSINGREAL TIME CLOCKUSER FRIENDLY7'" CRT MONITORTURNUP KEYBOARD, FULLY PORTABLETRACKBALL FOR ... length and axial lengthMeasuring method: Automatic (for normal, aphakic, pseudophakic, cataract)and manual10L ... : 10kg Ultrasonic A-B Scan for Ophthalmology