What is the topography of the cornea?
Cornea topography, often referred to as photoceratoscopy or videotography, is a technology that optometry often relies on eyes care. It uses computer equipment and analytical software to measure the natural curvature of the human cornea. Using a unique system of concentric rings projected on the cornea of a person, a virtual image is created from which the corneal curvature is calculated. These measurements are then mapped in the form of a color -marked multi -dimensional print that resembles a topographic map that one can encounter in a geographical textbook.
In the past, keratometers measured only four points over the small middle part of the cornea. Today's topographic corneal equipment can evaluate up to 10,000 specific points on the entire corneal surface. This allows much more accurate and accurate measurement.
The corneal topography is helpful in diagnosing and monitoring the Dual -Lunar Eye Conditions: Keratoconus and Pella marginal degenerationcid. Both of these conditions can disrupt the vision when the cornea begins to tick or change the shape. It is also invaluable in terms of evaluation of laser assisted in situ keratomileusis (lasik) or radial keratotomy of patients before and after surgery. In addition, it can also be used in prior and after surgical penetrating cases of keratoplasty.
Before the operation, optometry can use corneal mapping to identify possible problems that may exist, including scarring and irregular stigmatism. After surgery, the corneal topography can monitor the success of the surgery and determine whether the eye is properly burned. In terms of contact lenses, the topography of the cornea is useful during both design and assembly phases. Software Photoceratoscopy is such that the lens details, including material, size and designer of the case by case.
Although the price tag for the device may be very high, there is no doubt that withE This technology has become the standard of eye care. Many manufacturers offer leasing packages to compensate for initial investment costs. In addition, many of them believe that this technology has led to shorter offices in patients and to increase and invaluable patient satisfaction.
From the patient's point of view, the topographic corneal procedure is fast and painless. The patient simply squeezes his face up against the round wheel of the machine, lights up the bowl while the technician takes a number of pictures. The computer quickly generates a picture using different colors to indicate different signs of steepness, as well as the topographic landscape map uses different colors to display changes at altitude.