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1.4 Overview
● This instrument is a device used in ophthalmology to measure
the distance between living tissue, utilizing ultrasound waves
generated from the ultrasound transducer built into the
measurement probe. This device is designed to measure the
axial length and corneal thickness at optical clinics. The A-scan
diagnosis allows you to identify areas with pathological changes
by observing mode-A waveforms.
● Transmission of ultrasound waves is stopped when waveforms
freeze.
● The measurement probe connected to this instrument transmits
ultrasound waves to the inside of the eyeball and then receives
ultrasound echoes reflected by the tissue boundary surface in
the eyeball.
● The time required for the ultrasound wave to be transmitted from
the front of the corneal to the measurement section is measured,
and the length of the living tissue is calculated based on the
preset converted acoustic velocity.
L: Length of living tissue
V: Converted acoustic velocity
t: Measurement time
● This instrument is equipped with an automatic measurement
function and sound monitor function, as well as functions for
measuring axial length and corneal thickness, for ease of
operation by the physician.
● This instrument adopts the SRK/T II, SRK/T, HOLLADAY, Hoffer
Q, and HAIGIS standard as the IOL power formula, and the IOL
power can be calculated immediately after measuring axial
length.
● The measurement data can be saved in the internal memory.
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