title: A tricolor light source for stimulation and adaptation in electroretinography.
abstract: A Ganzfeld light source, fitted on an electroretinogram contact lens, is described. The light source can provide blue, green, or red flashes with intensities over a range of 3.6 log units. It can also be used to provide a continuous light-adapting background in each of the above-mentioned colors, simultaneously presenting the possibility of emitting flashes. The control unit and the light source can be powered by a small battery pack.
mesh_terms: D000222:Adaptation, Physiological; D002825:Chorioretinitis / Q000209:etiology / Q000503:physiopathology; D003623:Dark Adaptation; D004596:Electroretinography / Q000295:instrumentation*; D006801:Humans; D008027:Light; D010775:Photic Stimulation / Q000295:instrumentation*; D013587:Syphilis