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.