Evaluation of clinically applied visual evoked potential (VEP) in ophthalmological and neurological diseases.
- Author:
Hyung Woo KWAK
1
;
Sang Min KIM
Author Information
- Publication Type:Original Article ; Comparative Study
- Keywords: visual evoked potential; functional amblyopia; P1 implicit time; P1 wave; optic neuritis; optic nerve atrophy
- MeSH: Adolescent; Adult; Amblyopia/*diagnosis; Brain Diseases/*diagnosis; Child; Diagnosis, Differential; *Evoked Potentials, Visual; Humans; Middle Aged; Optic Atrophy/*diagnosis; Optic Neuritis/*diagnosis; Time Factors
- From:Korean Journal of Ophthalmology 1987;1(1):26-30
- CountryRepublic of Korea
- Language:English
- 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.
