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Quick Reference Guide
A-SCAN
How To Measure A New Patient
1.
Step One:
Begin a new patient, by selecting
New
Patient
.
3.
Step Three:
Launch A-Scan Mode by clicking the
A-Scan icon
.
2.
Step Two:
Type the patient data into the appropriate
fields.
4.
Step Four:
On the measurement screen, choose
your measurement options (
Eye Type, Contact/
Immersion, and OD/OS
); options can be adjusted by
clicking on the associated icon.
5.
Step Five:
Prepare by following the immersion shell/
probe setup guidelines.
7.
Step Seven:
Pin back patient’s lids and place shell
directly over the cornea. Fill shell with BSS past
probe tip until waveforms are displayed on screen.
6.
Step Six:
When in auto mode, begin with foot pedal
pressed.
8.
Step Eight:
Release foot pedal when spikes are
acceptable and machine will auto-capture (if
automatic capture mode is selected).
9.
Step Nine:
Ensure all wave forms are within 0.1mm
(immersion) and 0.2mm (contact) and that the
spikes are of sufficient amplitude and exhibit proper
pattern.
You can check through the five scans by tapping
the foot pedal. If you would like to replace a
measurement, press and hold the foot pedal until
scan is deleted, or press the
Insert key
on the PC.
After scan is deleted, a live waveform pattern will be
on the screen. When spikes are acceptable, release
the foot pedal to capture.
