Electroretinographic responses in Lafora disease.
In 3 patients with Lafora disease specific ERGs were observed resembling closely those seen in the Schubert-Bronschein type of night blindness. In contrast to essential hemeralopia, where the b-wave is completely lacking a gradual recovery of the b-wave was recorded in Lafora disease. The recovery occurred within about 15 min of dark adaptation. ERG examinations may have diagnostic significance in patients with myoclonic epilepsy.
D000293:Adolescent; D000328:Adult; D003623:Dark Adaptation; D004596:Electroretinography; D004831:Epilepsies, Myoclonic / Q000503:physiopathology*; D006801:Humans; D008297:Male; D009755:Night Blindness / Q000503:physiopathology