title: Rod-cone interactions in the ERG of a patient with Bardet-Biedl syndrome.
abstract: During routine ERG testing of a patient with Bardet-Biedl syndrome, we encountered an ERG anomaly not previously reported. A white flash which produced a response during light adaptation would produce no ERG when the retina was dark-adapted. Possible explanations for this phenomenon are discussed.
mesh_terms: D000328:Adult; D003623:Dark Adaptation; D004596:Electroretinography; D005451:Fluorescein Angiography; D006801:Humans; D007849:Laurence-Moon Syndrome / Q000473:pathology / Q000503:physiopathology*; D008297:Male; D010786:Photoreceptor Cells / Q000503:physiopathology*