Patent ID: 6715878
Filing Date: 2004-04-06
Classification: A61B

Abstract:
An apparatus for measuring visual performance for ophthalmologic examinations, comprising:an electronic processing unit configured to produce at least one of characters and graphic signs; at least a shutter of optic paths relating to eyes of a subject being examined, said shutter configured to obstruct at least one eye at a time; a first visualization device of said at least one of characters and graphic signs, controlled by a convertor, connected to said electronic processing unit; a device of observation and measurement of dimensions of at least one pupil of the subject being examined, configured to produce an image signal sent to an electronic analysis circuit, digitally converted, and to transmit, to said electronic processing unit, information relating to the dimensions of the at least one pupil; a first illumination device of the at least one pupil, through invisible electromagnetic radiation, controlled to be working at an eye being examined in the subject; and a second illumination device of the at least one pupil, through visible electromagnetic radiation, controlled to prove working next to at least one eye not being examined of the subject, and whose emitted light flux is adjustable by said electronic processing unit.