APC AR1100 Operator's Manual download pdf (Page 62)

OPERATING PROCEDURES: AR (refractive error) and KM (corneal curvature radius) Measurements

{ Measurement ring image display

The TONOREF II projects measurement beams on the patient’s fundus and computation is performed

by capturing the reflected beams as a ring image to measure the refractive errors of the patient’s eye.

The TONOREF II displays this ring for the operator to observe the patient’s eye.

1 Perform normal measurement.

A thumbnail of the ring image is displayed along

with “<<FINISH>>” when measurement is com-

plete.

2 Press the ring image enlargement button to

switch to the full screen display.

Observe the size, shape and such of the ring

image.

3 After checking the ring image, press the exit button to return to the measurement

screen.

• When both eyes have been measured, manipulating the joystick to switch the main body

between the right and left also changes the display of the ring image between the right and

left.

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APC AR1100 Operator's Manual Page 62