Ziemer Galilei G2 Topographer

The Galilei G2 is a faster, HD version of the previous G1 model. The newer and faster GALILEI G2 increases the processing performance and dramatically reduces the total time of a standard patient examination. G2 means doubled productivity!

 

  • Intel Core 2 Duo processor
  • 2.53+ GHz
  • 4 GiB RAM
  • 250 GiB harddisk drive
  • 22-inch display monitor
  • ½ the time for a measurement
  • 2 scans in the same time of one traditional measurement
  • 2 times the number of patients examined per hour
  • ½ the lag time waiting for processing

Oculus Pentacam HR Topographer

The new HR Pentacam has an improved optic design and a high resolution 1.45 Mega Pixel Camera. Primary advantages are: Crisper and sharper Scheimpflug pictures allowing excellent IOL and phakic IOL implant imaging. More precise presentation of the corneal layers. Cornea imaging via a fine scan produced by 100 images in less than 2 seconds for improved accuracy. An active, shifting fixation target to allow patients with high ametropia an easy fixation.

  • More precise presentation of the corneal layers
  • Cornea imaging via a fine scan produced by 100 images in less than 2 seconds for improved accuracy.
  • An active, shifting fixation target to allow patients with high ametropia an easy fixation.

Glaucoma screening:

The Pentacam provides a comprehensive and completely automatic analysis of the anterior chamber. Immediately after the eye has been examined, the instrument displays whether the patient has an increased risk for glaucoma. Post-operative evaluation of the anterior chamber shows alterations, e.g. after an iridectomy or other surgical interventions.

Cataract:

The Scheimpflug images produced by the Pentacam supply a clear representation of lens opacity. The 3D cataract analysis combined with the PNS (Pentacam Nucleus Staging) is a unique feature. The centre of the cornea and its anterior and posterior surfaces are measured very precisely for optimal calculation of the refractive corneal power. For your patients this means a perfect calculation of the IOL power – even after refractive surgery.

Bausch & Lomb Orbscan II Topographer

ORBSCAN II provides anterior segment data in the form of topographic surfaces. Elevation topography of the anterior cornea enables clinicians to more accurately visualize the shape of abnormal corneas, which leads to more accurate diagnoses and more consistent surgical results, at a much lower cost than most other topographers.

The reason for this is simple but important. When presented with maps of curvature or slope, you must mentally translate these data into elevation, because we visualize shape as topography (hills and valleys). This translation can be very difficult, often counter-intuitive, if the curvature map is of an asymmetric or irregular surface. Curvature alone does not usually provide sufficient useable information for the mind to construct an accurate three-dimensional shape.

Traditionally, power maps (actually surface curvature) have been axis-centered, which are method dependent and only show one selected piece of the complete angle-dependent power. The new mean and toric decomposition of the complete curvature tensor, allow clinicians for the first time to see and quantify local curvature (and paraxial power) variations as well as the fundamental spherocylindrical components. Full corneal pachymetry allows surgeons to use regional blade settings, to measure the laser ablation depth from a fixed surface (the posterior cornea), and to assess the effect of the posterior surface on corneal power. Accurate knowledge of both surfaces will provide researchers with real data for corneal mechanics simulations. The point of minimum corneal thickness is a local center of axisymmetry, which for normal corneas aligns closely to the overall optical axis of the eye.
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