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> Corneal Topography
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Corneal Topography
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Corneal topography is used to acquire accurate measurements of
the cornea's surface. The corneal topographer technician uses an
instrument called a videokeratoscope which reflects on the patient's
cornea and captures a high resolution eye image. This image is then
processed by a computer software program which generates a color display
containing five different types of data maps. Unlike conventional
keratometry, which only measures the central steepness of the cornea,
corneal topography provides a complete picture of all of the steep and
flat areas of the entire cornea. This measurement is used in fitting
contact lenses, before cataract surgery, for pre- and post-operative
corneal transplant patients and for laser vision correction patients.
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