title: Steady-state PVECP is superior to transient PVECP in the diagnosis of optic neuritis.
abstract: OBJECTIVE
  To compare the diagnostic value for optic neuritis between transient pattern visual evoked potentials (PVECP) and steady-state PVECP.
  
  
  METHODS
  We retrospectively studied 86 eyes of 69 patients with optic neuritis who visited our clinic. PVECPs to 3 rev/sec stimulation (transient) and 12 rev/sec stimulation (steady-state), were recorded in all patients.
  
  
  RESULTS
  All of the cases with non-recordable transient PVECP showed non recordable steady-state PVECP Conversely, the cases with non-recordable steady-state PVECP often showed measurable transient PVECP where the latency of the P100 component was delayed. In 51 cases with unilateral optic neuritis, the amplitude ratio of the P100; affected eye/non-affected eye was significantly smaller in the steady-state PVECP than in the transient PVECP CONCLUSION: To detect visual dysfunction in optic neuritis, a steady-state PVECP was more sensitive than a transient PVECP.
authors.affiliation: Department of Ophthalmology, Chiba University School of Medicine, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Takasoh
authors.forename: E
authors.initials: E
authors.lastname: Adachi-Usami
authors.forename: A
authors.initials: A
authors.lastname: Mizota
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005074:Evoked Potentials, Visual / Q000502:physiology*; D005260:Female; D006706:Homeostasis / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009902:Optic Neuritis / Q000175:diagnosis*; D010775:Photic Stimulation / Q000379:methods; D011930:Reaction Time; D013997:Time Factors