It is a staging (grading) display for keratoconus. In the 1950s the Amsler-Krumeich staging system for keratoconus was developed and is still frequently used today. However the Amsler-Krumeich only takes anterior curvature and central corneal thickness into consideration. The ABCD ...
If the patient’s refraction is hyperopic - regardless of amount - the Hyperope option should be activated. The reason for this is that normative data for posterior elevation differs between myopes and hyperopes.
It is important to note that BAD is an early ectasia risk screening tool often used to screen possible refractive candidates. The population being screened for refractive procedures due to their eye condition by their very nature will have a ...
No, the most important parameter for early ectasia screening is the “Final D”. The other 5 parameters contribute to the “Final D” value, but none of the 5 should be used on its own as a screening parameter.
The formula to calculate this parameter is as follows: ARTmax = TP (thinnest point) / PPImax The TP is detected by the software. Furthermore the progression from the TP towards the periphery of the cornea is calculated. The half meridian ...
In the BAD all the curvature data for a specific diameter are used to calculate the radius of a reference surface (BFS) to evaluate height data – the goal is to detect suspicious elevation in the anterior and the posterior ...
The normative data of this display are based on published studies. These studies can be found by clicking the “Literature button” next to the results.
Automated keratometry generates K values on the 3 mm ring centred on the pupil centre. The Pentacam® gives the clinician the option to have K values calculated for different maps using either the pupil centre or the apex as the ...
Accurate corneal power is important specifically when calculating intraocular lens (IOL) power. Different IOL power calculating formulas are available today using different corneal power. The more traditional formulas still use power values derived from sagittal power maps, but during the ...
Different corneal power maps are displayed by the Pentacam®:: Sagittal and Tangential Power map Refractive Power map True Net Power map (TNP) Total Corneal Refractive Power map (TCRP) Pentacam® measures height (elevation) data. These are converted into curvature (mm) and ...
Yes, SimK values are derived from the sagittal map.
Unless for specific reasons, a Pentacam® exam should be done first when performing diagnostic tests. No pupil dilation (except for certain lens examinations), no eye drops or any other ointments should be instilled prior to a Pentacam® examination.
The OCULUS QM system is certified in accordance with ISO 13485 and (EU) 2017/745 (MDR).
The availability of products and features may vary by country. OCULUS reserves the right to change product specifications and design. Please contact your local distributor or OCULUS directly for information on current product availability in your country.
Copyright © 2026 OCULUS • All rights reserved OCULUS Optikgeräte GmbH • Münchholzhäuser Str. 29 • 35582 Wetzlar • GERMANY • Tel. +49 641 2005-0 • Fax +49 641 2005-255