The pattern evoked response in disorders of the optic nerve.
The pattern evoked electroretinogram (PERG) was investigated in 11 patients with unilateral optic nerve disease and in a series of age-matched controls. The visually evoked potential (VEP) was also measured. The PERG showed a similar reduction to the VEP in optic nerve disease. Serial studies indicate that the PERG may not be affected immediately in some instances but may show a gradual decline over several months.
D000293:Adolescent; D000328:Adult; D004596:Electroretinography; D005074:Evoked Potentials, Visual; D006801:Humans; D008875:Middle Aged; D009900:Optic Nerve / Q000503:physiopathology; D009901:Optic Nerve Diseases / Q000503:physiopathology*; D020221:Optic Nerve Injuries; D010775:Photic Stimulation / Q000379:methods