What is Pentacam?
A Pentacam is a non-invasive and non-contact diagnostic instrument that provides a 3-dimensional image of the anterior portion of the eye. It consists of a rotating camera that captures a series of images. These images are used to measure the thickness and topography of the cornea, and the angle and density of the lens.
During the examination, you will sit on a chair, place your chin on a chin rest, and gently press your forehead against a headband. You are instructed to keep both eyes open and stare at a black spot in the centre of a blue fixation beam of the instrument. Your investigator focuses and centralizes your eyes within the aiming circle. The Pentacam is a computer-aided system that automatically captures the images by rotating 180 degrees. The camera generates about 12 to 50 single captures. Each measurement takes about half a minute. You may be asked to relax and blink for a few minutes in between the captures. The Pentacam examination takes only a few minutes to complete.