| 摘要 |
<p>The invention refers to a system to measure the topography of both surfaces of the cornea (6) and it is thickness, based on a collimated light beam, namely a laser beam, expanded in a fan shape (5) by a cylindrical lens (4) provided with rotational movement. The fan expanded beam (5) produces an image of a corneal section by light diffusion; this image is captured by one or more video cameras (2, 3). The rotation of the cylindrical lens (4) causes the simultaneous rotation of the corneal section image, producing a complete scanning of the same cornea (6).</p> |
