Technolas Victus, User Manual

Page: 116 / 207

8.5.6
Parameters for penetrating keratoplasty
Precondition:
n
A penetrating keratoplasty procedure must be selected (Fig. 80).
For general information about how to view or specify parameter values refer to
Ä Chapter 8.5.1 ‘Parameters for capsulotomy’ on page 8 - 36. Parameter-specific
information are described below.
Fig. 80: Penetrating keratoplasty dialog boxes
Every parameter change updates the B scan image automatically (Fig. 80).
Parameter dialog box Definition
‘Diameter [mm]:’ Diameter of the PKP at the anterior surface of
the cornea.
‘Pachymetry [µm]:’ Pachymetry of the thickest point of the cornea
at the diameter of the PKP.
‘Depth ratio [%]:’ Ratio of cutting depth to pachymetry, should
be above 100 % for PKP.
‘Resulting depth [µm]:’ Cutting depth resulting from pachymetry and
depth ratio.
‘Posterior diameter [mm]:’ Diameter of the PKP at the posterior surface of
the cornea resulting from entered pachymetry,
diameter and side cut angle.
‘Size’ dialog box
Fig. 81: ‘Size’ dialog box
SOFTWARE
8
SKU: 70005780TPV * Version 6 * UM-100010770 GB
8 - 50
TPV Controlled Document / Status: Effective / Effective Date: Jun 14, 2017 2:38:46 PM
UM-100010770 / Version 6 / Page 116 of 207