System of measure the topography of both corneal surfaces and corneal thickness

摘要

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 ).