OCULUS Pentacam User Manual

5 Device Description
6 / 29 Instruction Manual Pentacam® / Pentacam HR® (G/70700/0109/en)
5 Device Description
5.1 Overview of device components
Fig. 5-1: Device components
5.2 How the Pentacam works
While rotating around the eye, the Pentacam creates Scheimpflug images of the front
part of the eye through varying axes. The images which this rotation produces are the
basis for calculating height data which is used to extrapolate all other results and to cre-
ate a 3D model.
The entire measuring process takes less than two seconds. Up to 25,000 (HR: 138,000)
genuine height values are measured and analysed. At the same time any eye movement
is recorded, which the 3D model takes into account.
When the PC has received the appropriate data record it calculates a 3D model of the
front part of the eye. The 3D model provides the basis for all subsequent analysis.
The topography of the front and rear surfaces of the cornea and the pachymetry are
calculated and displayed from limbus to limbus for the entire surface of the cornea.
1 Ventilation opening 6 Cross slide
2 Measuring window 7 Sliding plate
3 Camera opening 8 Circular markings on sliding plate
4 On/off switch with indicator light 9 Joystick
5 Y-cable connector 10 Nameplate

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