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OCULUS Pentacam Interpretation Guide

OCULUS Pentacam
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22 Phakic IOL implantation
22 Phakic IOL implantation
22.1 Manual pre-op simulation and post-op control
by Eduardo Viteri, MD
22.1.1 Preoperative evaluation
A high myopic, 20-year-old patient entered the office; refraction data:
OD: sph -12.00 (cyl -1.50 A 180°)
OS: sph -12.50 (cyl -1.50 A 10°)
She complained of poor contact lens tolerance with less than 4 hours of daily wearing time. We
discussed several treatments and the possibility of implanting a pIOL. The Pentacam® allows us to
measure very easily and accurately the anterior chamber and so determine if there is enough space
to implant an iris-fixated Artisan phakic IOL.
One can measure not only the distance from the endothelium to the anterior surface of the
crystalline lens but also the available space at the point where the claws will grasp the iris
(Figure 176). Most important are minimum distances, which are in most cases not perpendicular to
the iris, but diagonal.
A Pentacam® examination for the pre-op planning of the surgery showed there was enough space
for the Artisan pIOL implant.
Figure 176: Scheimpflug Image with pre-op measurements

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OCULUS Pentacam Specifications

General IconGeneral
Measurement TimeLess than 2 seconds
Corneal CoverageUp to 12 mm
SoftwarePentacam Software
Data TransferUSB
Corneal TopographyYes
DisplayExternal monitor required
Measurement PrincipleScheimpflug imaging
CameraRotating Scheimpflug camera
Light SourceBlue LED
PachymetryYes
Anterior Chamber AnalysisYes
Imaging PrincipleScheimpflug imaging
FixationInternal
Power Supply100-240 V, 50/60 Hz
ResolutionHigh resolution
Lens Density MeasurementYes
DimensionsVaries depending on model and configuration
WeightVaries by model, check manufacturer specifications
Number of Images25 or 50

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