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Accutome A-Scan Plus User’s Guide
Probe Applica-
tion Methods
The Accutome A-Scan Plus supports two different
methods of applying the probe to the cornea, contact
and immersion.
Select the method you will be using by pressing the
Contact/Immersion soft menu button.
Immersion
The Accutome A-Scan Plus makes it easy to use the
Immersion method. The immersion method yields
improved accuracy by allowing direct detection of the
corneal echo and eliminating compression of the ACD
associated with the contact method.
The immersion probe application method is used in
conjunction with a Prager shell or Hansen shell with an
immersion fluid. While using the immersion method the
probe should be placed from 5 - 14.5 mm above the
cornea.
Contact
The Contact method allows you to apply the probe
directly to the anesthetized cornea.
CAUTION: When using the contact
method, care should be
taken to minimize corneal
compression. Corneal
compression will result in
a shorter axial length
measurement and will
affect IOL calculations.
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