Pentacam® HR

With its brighter and optimized optics the Pentacam® HR offers you brilliant image quality.

The resolution of its images is five times that of the Pentacam® models, enabling the Pentacam® HR to deliver impressive representations of IOLs and phakic IOLs.

The Pentacam® HR comes with an extensive basic software package which can be extended according to your needs to include further optional software packages and modules.

Pentacam® HR Standard software

General Overview

Uses

  • Comprehensive overview
  • Patient consultation

Details

The General Overview provides important information on the keratometry and pachymetry of the cornea in concise numerical form. The Scheimpflug image provides ophthalmologists and their patients with intuitive representations of opacities of the cornea or lens (cataract) or of the position of existing IOLs. The anterior chamber is described in terms of anterior chamber depth, volume and angle. When combined with IOP tonometry readings corrected for corneal thickness the General Overview permits an assessment of glaucoma risk. It also allows the display of all color maps.

Fast Screening Report

Uses

  • Quick detection of irregularities
  • Patient consultation

Details

The Fast Screening Report provides an intuitive guide to review the Pentacam® results. It is a great tool for detecting abnormalities and to quickly screen new patients. Normative data is gathered from published studies and stored in the Pentacam® software. The distribution of normal values in a population is represented by the bars shaded in gray. The diagrams show the distribution for normal (green) and pathological (red) eyes. Sources, which the evaluations are based on, are cited to provide additional information. In cases of irregularities, the individual displays for detailed findings appear in the interactive navigation bar.

Belin/Ambrósio Enhanced Ectasia Display

Uses

  • Early ectasia detection
  • Reliable detection of forme-fruste keratoconus

Details

The Belin/Ambrósio Enhanced Ectasia Display is the first screening tool to combine anterior and posterior corneal elevation data with an evaluation of corneal thickness progression in a final parameter, referred to as Index D. Besides allowing for greater overall accuracy in diagnosing ectasia it can, in particular, assist in the early detection of this disorder. It determines the progression of corneal thickness across an array of concentric rings centered on the thinnest point and reaching into the periphery. Two elevation maps are generated, one based on a standard reference surface and the other on an enhanced reference surface, and the differences found between them are shown in a color code to facilitate evaluation: green for unremarkable, yellow for conspicuous, and red for potentially pathological.

  • Villavicencio et al, Independent Population Validation of the Belin/Ambrosio Enhanced Ectasia Display: Implications for Keratoconus Studies and Screening, Int. Journal of Keratoconus and Ectatic Corneal Diseases, Jan-Apr 2014;3(1):1-8    
  • Ambrosio et al; Corneal-thickness spatial profile and corneal-volume distribution: Tomographic indices to detect keratoconus, J Cataract Refract Surg - VOL 32, NOVEMBER 2006    
  • Khachikian et al; Posterior Elevation in Keratoconus, Ophthalmology; Volume 116, Issue 4 , Pages 816-816.e1, April 2009    
  • Ambrosio et al; Corneal Ectasia After LASIK Despite Low Preoperative Risk: Tomographic and Biomechanical Findings in the Unoperated, Stable, Fellow Eye, J Refract Surg. 2010 Nov;26(11):906-11.    
  • Belin et al; Corneal Ectasia Risk Score: Statistical Validity and Clinical Relevance, Journal of Refractive Surgery Vol. 26, No. 4, 2010;    
  • Kim et al; Tomographic Normal Values for Corneal Elevation and Pachymetry in a Hyperopic Population, J Clinic Experiment Ophthalmol Volume 2, Issue 2, 1000130; ISSN:2155-9570;    
  • Feng et al; International values of corneal elevation in normal subjects by rotating Scheimpflug camera, J Cataract Refract Surg 2011; 37:1817-1821 Q 2011 ASCRS and ESCRS;    
  • Ambrosio et al; Novel Pachymetric Parameters Based on Corneal Tomography for Diagnosing Keratoconus, J Refract Surg. 2011 Oct;27(10):753-8;    
  • Correia et al; Topometric and Tomographic Indices for the Diagnosis of Keratoconus, International Journal of keratoconus and Eczatic Diseases, May-August 2012; 1 (2):92-99;    
  • Gilani et al; Comprehensive anterior segment normal values generated by rotating Scheimpflug tomography, J Cataract Refract Surg 2013; 39:1707-1712 Q 2013 ASCRS and ESCRS;    
  • Ambrosio et al; Corneal Ectasia After LASIK Despite Low Preoperative Risk: Tomographic and Biomechanical Findings in the Unoperated, Stable, Fellow Eye, Journal of Refractive Surgery Vol. 26, No. 11, 2010

Topometric/KC-Staging

Uses

  • Display of eccentricity results by zone
  • Topography of the anterior and posterior corneal surface

Details

The rotating measurement principle guarantees high resolution output for the central cornea. The topographic analysis of the anterior and posterior corneal surfaces is based on the measured elevation data.

  • Display of sagittal and tangential curvature of radius and refractive power
  • Various elevation maps based on freely selectable reference surfaces
  • Determination of true net corneal power with due consideration also to the posterior corneal surface
  • Various four-map displays with default or freely configurable settings
  • Subtractive and comparative representations of various examinations

Belin ABCD Progression Display

Uses

  • Keratoconus progression for up to eight exams per eye
  • Direct comparison of right and left eye
  • Retrospective application

Details

The Belin ABCD Progression Display allows direct comparison of up to eight exams per eye. The four parameters A (= anterior radius of curvature in 3 mm Zone), B (= back/posterior radius of curvature in 3 mm Zone), C (= corneal thickness at thinnest point) and D (= distance corrected visual acuity - DCVA) are displayed side by side to easily visually determine a trend of progression or depression (according to CXL). Each individual exam can be marked as baseline/reference (first exam by default) or as first exam after a cross-linking treatment (white/black bar line). The red and green lines describe the respective confidence intervals (CI). The red lines describe the group with keratoconus, the green lines the normal/healthy group. The solid lines indicate the 95 % CI and the dashed lines the 80 % CI. The Belin ABCD Keratoconus Staging (Topometric/KC-Staging) and the Belin ABCD Progression Display can be used retrospectively.

Tomography

Uses

  • Changes which become visible in the Scheimpflug image are lucidly represented in a 3D model.
  • Anterior segment tomography

Details

The rotatable, pivotable 3D model of the eye proves to be an enormous help when consulting with patients, as it permits the patient to see his or her eye from all sides so that irregularities can easily be explained. It provides a view of the anterior segment as a whole as well as separate views of the cornea and crystalline lens.

Cataract Package

  • Cataract Pre-Op Display for premium IOL selection and assessment of the optical properties of the entire cornea
  • True Net Power map (TNP)
  • Total Corneal Refractive Power map (TCRP)
  • Corneal Power Distribution
  • Zernike Analysis including normative corneal wavefront data
  • PNS and 3D Cataract Analysis
  • Show 2 Exams
  • Compare 4 Exams
  • Comparative analysis of topometric and pachymetric data
  • Automatic anterior chamber angle analysis
  • 4 Maps Chamber
  • 4 Maps Topometric
  • Anterior Chamber Depth Map
  • Measurements in the Scheimpflug images
  • 3D anterior chamber analysis

Refractive Package

  • Free selection of reference surfaces for the color representation of elevation data
  • Corneal Optical Densitometry
  • Corneal Rings
  • Display of corneal thickness progression for keratoconus detection
  • 4 Maps Selectable
  • Show 2 Exams
  • Compare 4 Exams
  • Side-by-side comparison of topometric and pachymetric data
  • Fourier Analysis

Corneal Optical Densitometry

Uses

  • Location of corneal opacities
  • Assessment of the depth and degree of opacification

Details

This software provides a standardized method of selective quantification of corneal opacities. The maximum and average corneal opacity is displayed in a color map. Opacities can also be viewed in selected layers. Corneal opacities are shown for defined annuli and depths, facilitating uniform evaluation. This function served as a basis in the normative data studies listed below.

  • Sorcha Ni Dhubhghaill, Jos J. Rozema, Sien Jongenelen, Irene Ruiz Hidalgo, Nadia Zakaria,Marie-Jose Tassignon; Normative Values for Corneal Densitometry Analysis by Scheimpflug Optical Assessment, IOVS, January 2014, Vol. 55, No. 1, 164.
  • Sorcha Ni Dhubhghaill, Jos J. Rozema, Marie-Jose Tassignon; Corneal Scheimpflug Densitometry Values measured by Pentacam in Fuchs Endothelial Dystrophy, ARVO 2014, Program Number: 2447 Poster Board Number: B0232

PNS and 3D Cataract Analysis

Uses

  • Cataract classification
  • Determination of lens opacities in 3D

Details

Opacities of the cornea, crystalline lens or of IOLs, e.g. PCO (posterior capsular opacification) are made visible by blue light illumination. The software allows automatic and objective three-dimensional quantification of lens opacity. This offers the advantage of an optimal follow-up of cataract patients. The Pentacam® Nucleus Staging Module, „PNS“ for short, was developed in collaboration with Dr. Donald Nixon. This parameter is helpful in optimizing the settings of phaco machines. It is also useful in femto laser assisted cataract surgery.

  • Nixon et al; PREOPERATIVE CATARACT GRADING BY SCHEIMPFLUG IMAGING; doi:10.1016/j.jcrs.2009.08.032
  • Meyer et al, Impact of Crystalline Lens Opacification on Effective Phacoemulsification Time in Femtosecond Laser-Assisted Cataract Surgery; AJO; doi.org/10.1016/j.ajo.2013.09.017

Holladay Report

Uses

  • Comprehensive comparative display of clinical data
  • EKRs (equivalent keratometer readings) for IOL calculations in post-refractive patients

Details

The Holladay Report was developed in collaboration with Jack T. Holladay, M.D. It supplies data for calculating the optimal IOL refractive power for patients who have undergone refractive corneal surgery such as LASIK, PRK and RK. It determines total corneal power, displaying it in terms of EKRs for different zones.

  • Holladay et al; Corneal Power Measurements Using Scheimpflug Imaging in Eyes With Prior Corneal Refractive Surgery, J Refract Surg. 2009 Oct;25(10):862-8.
  • Symes et al; Automated keratometry in routine cataract surgery: Comparison of Scheimpflug and conventional values, J Cataract Refract Surg. 2011 Feb;37(2):295-301

Compare 2 Exams
Show/Compare 2 Scheimpflug Images

Uses

  • Follow-up
  • Comparison of the preoperative and postoperative condition

Detail

All available color maps from two different examinations can be compared. The course or change over time is displayed in color maps or numerically in Scheimpflug images.

Contact Lens Fitting

Uses

  • Automatic suggestions for contact lenses
  • Realistic fluo image simulation
  • Integrated database containing over 845,000 lenses

Details

Dynamic fluo image simulation produces an image of how a specific contact lens from the database fits on the eye. The simulation makes it possible to adjust the inclination and position of the contact lens and includes automatic recalculation of the fluo image. The integrated and expandable database contains over 845,000 lenses. The contact lens geometries can be adjusted individually in cases where fitting is difficult. The user can establish his or her own ranking list for contact lens manufacturers.

Scheimpflug Image Overview

Uses

  • Check images for disruption due to blinking
  • All Scheimpflug images at a glance

Details

All Scheimpflug images are shown. This makes it possible, for example, to spot interferences with the measurement process (light, blinking by the patient etc.) at a glance. This display appears directly after completion of the measurement, providing the option of stopping further calculations and repeating the measurement. However, this is not intended as an alternative to the automatic assessment of image quality, displayed as QS (quality specification).

The display is also useful for detecting first signs of opacification of the cornea or crystalline lens.  

 

More information about the Pentacam® HR:

Core functions    Basic software    Optional software    Model line-up

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