Korean J Ophthalmol.  1987 Jun;1(1):26-30. 10.3341/kjo.1987.1.1.26.

Evaluation of clinically applied visual evoked potential (VEP) in ophthalmological and neurological diseases

• Kwak HW
• Kim SM

• KMID: 1734996
• DOI: http://doi.org/10.3341/kjo.1987.1.1.26

Abstract

VEPs weie recorded in 222 cases of different disease groups and in 42cases of the control group using a Nicolet CA 1000 system. The latency time of N1, P1, N2, and P2 from the prominent surface peak and the P1-N2 amplitude at full field pattern reversal VEP. The score of each disease group was compared with those of the control group. The results are as follows; 1. Functional amblyopia, optic neuritis, and optic nerve atrophy patients presented a significant derrease in amplitude in comparison to normal subiects. 2. In the P1 implicit time, optic neuritis, and optic nerve atrophy patients presented a marked delay. Functional amblyopia patients presented a moderate delay while other disease group patients presented normal to mild delays. 3. More than half of the optic neuritis and optic nerve atrophy patients presented a detraction of the P1 wave form.

Keyword

visual evoked potential; functional amblyopia; P1 implicit time; P1 wave; optic neuritis; optic nerve atrophy

MeSH Terms

Adolescent
Adult
Amblyopia/*diagnosis
Brain Diseases/*diagnosis
Child
Diagnosis, Differential
*Evoked Potentials, Visual
Humans
Middle Aged
Optic Atrophy/*diagnosis
Optic Neuritis/*diagnosis
Time Factors