OCULUS Pentacam Interpretation Guide

87
The enhanced reference surface more closely resembles the more normal periphery (Figure 108) and
allows for easier identification of ectatic regions.
In Figure 109, the standard BFS is shown on the left, while the enhanced reference surface on the
right accentuates the ectatic region, yielding an island of greater magnitude.
The enhanced reference surface is one component of the Belin/Ambrósio Enhanced Ectasia Display,
a comprehensive tool for preoperative refractive surgery screening.
Figure 107: Elevation map of a keratoconic cornea using an enhanced reference shape
with an exclusion zone to improve detectability
Figure 109: Standard BFS on the left, enhanced reference surface on the right
Figure 108: Enhanced reference surface
12 Belin/Ambrósio Enhanced Ectasia Display

OCULUS Pentacam Specifications

General

Measurement Time	Less than 2 seconds
Corneal Coverage	Up to 12 mm
Software	Pentacam Software
Data Transfer	USB
Corneal Topography	Yes
Display	External monitor required
Measurement Principle	Scheimpflug imaging
Camera	Rotating Scheimpflug camera
Light Source	Blue LED
Pachymetry	Yes
Anterior Chamber Analysis	Yes
Imaging Principle	Scheimpflug imaging
Fixation	Internal
Power Supply	100-240 V, 50/60 Hz
Resolution	High resolution
Lens Density Measurement	Yes
Dimensions	Varies depending on model and configuration
Weight	Varies by model, check manufacturer specifications
Number of Images	25 or 50