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: Measurement
with bed>fidden patients (45*, 90' or 135')
When measuring bed-ridden patients from the 45', 90' or 135' direction, An Ax shifting is required.
Select the AXIS compensation offset according to the measuring
direction as shown to the right.
The Ax (cylindrical axis) shifting is performed by pressing the Ax
switching key on the measuring units switch panel; the first time the
switch
is
pressed
the
unit
performs
an
automatic
45 '
compensation, the second time the switch is pressed the unit
performs an automatic 90* compensation, the third time the switch
is pressed the unit performs automatic an 135' compensation, and
the fourth time the switch is pressed the unit cancels the automatic
compensation.
On automatic Ax compensation mode, the Ax switching tamp will illuminate and the R/L reading mode
automatically switches from automatic to manual.
When the automatic Ax compensation is canceled,
the R/L reading mode is also restored.
Pressing the PRINT key prints out the measurement data and then cancels the automatic
compensation.
An automatic Ax compensation mark will be shown on the printout (see page 33).
When the measurement is not successfully done due to instability or quick movement of
eyes (QUICK mode)
When the measurement can not successfully be done due to eye instability or quick movement of a
child's eyes, the Quick mode is useful.
Press the QUICK key on the measuring unit switch panel.
The instrument enters the Quick mode and the measurement mode lamp will illuminate.
• The Quick mode increases the speed of measurement due to the automatic fogging being disabled,
but may lose measurement values may generate measured values that have low accuracy or vary
over a wide range.
You should not use the Quick mode for during normal eye measurement.
• Printouts in the Quick mode contain the character "Q" indicating the unit was in the Quick mode.
(see a sample printout in page 33)
Pressing the QUICK key a second time cancels the Quick mode.
The Quick mode will also be
canceled when the PRINT key is pressed.
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