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 Optional Software Modules

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 colour 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

Refractive Package

  • Free selection of reference surfaces for the colour 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

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)
  • Power Distribution Display
  • 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

IOL Calculator

Uses

  • comprehensive IOL planning
  • IOL calculation
  • documentation
  • constant optimization

Details

Originally developed for the Pentacam® AXL, the IOL Calculator is now also available in the Pentacam® HR. It offers space for up to 25 ophthalmologists to maintain their own set of up to 50 favourite IOLs. A large IOL database has been incorporated into the software for this purpose. If an IOL should ever be found missing, it can be added manually. Each user initializes their personal IOL Calculator by picking IOLs from their favourites list. If no further changes are made and everything has been set up as desired, the user only needs to load an examination, and the software will automatically calculate IOLs suitable for that patient. In doing so it takes into account the keratometry data, the induced astigmatism and the target refraction. Templates for calculating spherical, aspherical, multifocal, toric and toric multifocal IOLs as well as post-refractive-surgery IOLS are included. In addition to the standard formulas of SRK/T, Haigis, HofferQ, Holladay and Barrett Universal II it also provides Pentacam®-specific post-refractive-surgery IOL formulas derived from dedicated studies. The well-known double K formulas and the three Barrett formulas have been incorporated here as well. But the real highlight in the IOL Calculator is its ability to calculate toric IOLs based on TCRP (total corneal refractive power) according to Dr. Savini. Toric IOL calculation according to Barrett is also in the repertoire. After surgery the implanted IOL can be loaded from the templates and saved along with the date of surgery. After successfully entering the post-refractive outcome  (≥ 30 days) the examination can be earmarked for constant optimization.

The software also provides interfaces for calculating IOLs with the Okulix and Phaco Optics raytracing programs as well as for incorporating further calculators such as the Holladay Consultant.

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

3D pIOL Simulation and Aging Prediction

Uses

  • Pre-surgical planning of an iris-supported phakic anterior chamber lens    
  • Simulation of the post-operative position of the phakic anterior chamber lens    
  • Simulation of age-related lens growth and the position of the anterior chamber lens resulting from this

Details

The examiner enters the data on the patient's subjective refraction. Depending on the type of lens in question, the software calculates the necessary refractive power of the pIOL. The examiner selects a phakic IOL from the current database accordingly. The position of this pIOL in the anterior chamber is calculated in 3D and displayed in Scheimpflug images. The minimal distances between the phakic IOL and the crystalline lens as well as between the pIOL and the endothelium are calculated automatically and represented both in colour and numerically. This enables the examiner to give the patient visual information and facilitates patient selection.

  • Dick et al, CATARACT & REFRACTIVE SURGERY TODAY EUROPE I JANUARY/FEBRUARY 2007

 

More information about the Pentacam® HR:

Core functions  Basic software  Optional software  Model line-up

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