Keeler D-KAT Z, Инструкция по эксплуатации

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16
EN
D-KAT Z-Type Tonometer by KEELER
8.2 THE MEASUREMENT PRISM DOES NOT TOUCH THE CORNEA OR TOO
MUCH FORCE HAS BEEN APPLIED
Cause:
If the patient pulls his / her head back even
slightly, the pulses will become irregular
and the measuring prism contact with the
eye will become intermittent. If the patient
pulls his / her head even further back, the
fluorescein semi-circles will completely
disappear.
Correction:
If possible, use a band to hold the patient’s
head in place.
Cause:
If during measurement the slit lamp is
moved forward toward the patient or the
patient moves toward the slit lamp, the
sensor arm will be pushed into contact with
a stop spring and an audible alarm will
sound. The applanation surface will be too
large. The image will not change when the
measurement drum is rotated.
Correction:
Retract the slit lamp until regular pulses
and a correspondingly smaller applanation
surface are obtained. This is the correct
measurement position, in which variations in
pressure will not cause immediate variations
in the applanation surface.
8.3 THE TWO SEMICIRCLES ARE NOT CENTRAL IN THE FIELD OF VISION
Correction:
Using the joystick, move the slit lamp up
and to the left.