Bausch and Lomb Orbscan II Topographer

ORBSCAN II provides data of the anterior segment in the form of surface topography

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ORBSCAN II by ORBTEK (Bausch & Lomb) sets a new standard for precision measurement of the anterior segment of the eye. Using a measurement system of the slit scanning, the apparatus provides clinicians with valuable diagnostic information on the cornea, the iris and the lens. The state of the art ORBSCAN II is one of the most advanced systems available corneal topography technologically.

ORBSCAN II provides data of the anterior segment in the form of surface topography. elevation topography of the anterior cornea enables clinicians to more accurately visualize the shape of the abnormal cornea, leading to more accurate diagnoses and more consistent surgical results. The reason is simple, but important. When presented with maps of curvature or slope, you must mentally translate the altitude data, because we visualize as the topography (hills and valleys). This translation can be very difficult, often against-intuitive, if the plane of curvature is an asymmetric or irregular surface. Curvature alone generally does not provide sufficient for the mind to build an accurate three-dimensional shape information usable.

Traditionally, power boards (actually the curvature of the surface) were centered axis, which are dependent method and show a selected piece of power depending on the full angle. The new average decomposition and ring the full curvature tensor, allow clinicians for the first time to see and quantify local curvature (and paraxial power) variations as well as the basic components spherocylindrical. Complete corneal pachymetry allows surgeons to use the parameters of the regional blade to measure the depth of the laser ablation of a fixed surface (posterior cornea), and to evaluate the effect of the posterior surface of the corneal power. The precise knowledge of both surfaces provide researchers with actual data for the cornea mechanics simulations. The minimum point of the corneal thickness is a local center axisymmetric for normal corneas that closely matches the optical axis of the whole eye.

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