Harrison J M, Van Heuven W A
Doc Ophthalmol. 1985 Aug 30;60(2):203-9. doi: 10.1007/BF00158036.
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.