Bausch & Lomb Orbscan II Topographer w Win XP & 3.12 Z Software
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* 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.
* 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.