HiScan Touch
Installation and Operation Manual
OPTIKON 2000
Code 14101XEN
7-18
2014-09-02 Rev.B
The relevant point of the eye on which the operator needs to carry out the
pachymetry scan is highlighted on the map. When the value has been acquired, the
next point is automatically displayed, and continues in this way until the map is finally
completed.
When the instrument is in automatic mode, acquisition stops as soon as the peaks
are considered a technically valid pachymetry scan. After a few seconds, acquisition
starts again for the next point on the map, and continues in this way until the map is
completed.
When the test is completed, the map will display coloured circles inside which the
measured corneal thickness is shown. The background colour reflects the standard
deviation value for each measurement:
Green
: σ < 5
Yellow
: 5 ≤ σ < 10
Red
: σ ≥10
The background colour assumed by the measured point depends on the standard
deviation value, but for diagnostic purposes has no significance.
Every pachymetry measurement carried out displays the corneal thickness measured
(Thickness) and the standard deviation (Std.dev.).
When the map is completely filled, if the operator wants to repeat the measurement
on some points, follow the intructions:
•
Double click with the rigth button of the mouse on that point
•
The point become grey and flickering
•
Touch again the cornea with the tip of the probe in the same indicated point
•
The measurement will be acquired automaticly
•
Repeat the procedure for each point with wrong measurement
•
Save the map.
On saved map isn’t possible to repeat the measurements but each measure can be
changed manually. In order to change the value, foolow the istructions:
•
Select the point on the map
•
Click on the small window with the echoes (Bottom/Rigth of the screen)
•
The echoes window will be exchanded with the main map window.
•
Move the cursor on the desired points
•
Store the value pushing the <
Store
> button in order to change the value on
the map
•
Repeat for all the desired points on the map
•
Save the map by pusching the <
Save
> button on the footswitch
At the end of the test, the value of the central corneal thickness (CCT) is displayed in
two of the boxes next to the map, and also of the delta pressure to be used as a
corrective factor in Goldman tonometry (∆IOP).
