APPARATUS FOR TESTING VISUAL ACUITY AND/OR SENSITIVITY TO SPATIAL CONTRASTS IN MAN, AND DEVICE AND PROCESS FOR THE MANUFACTURE THEREOF

摘要

the present invention relates to a 2113732 9302614 acuity test equipment and / or spatial contrast sensitivity in humans, a device and a method of manufacture thereof.test equipment according to the invention has a plurality of optotypes arranged in the form of rows and columns.the contrast perceived by a human is a first to a last column (or, respectively, a first to a last line).the column (or row) of lower contrast seen corresponds to the minimum contrast perceived by healthy people.this equipment is designed to be implemented, in particular, for the detection of certain eye diseases affecting the visual contrast sensitivity in man.