Author/Editor		Janaky, M; Pelle, Z; Szabo, A; Benedek, G
Title		Electrophysiological assessment of functional impairments in a spectrum of optic nerve coloboma
Type		članek
Source		Zdrav Vestn
Vol. and No.		Letnik 62, št. Suppl 1
Publication year		1993
Volume		str. 99-102
Language		eng
Abstract		Electroretinograms (ERGs) and visual evoked potentials (VEPs) of 10 children with different degrees of optic nerve coloboma are presented. The amplitude of the ERG waves was found to be reduced, and this reduction correlated well with the extent of the retinal changes. The aamplitude of the VEP also depended on the degree of involvement of the optic nerve. The ophthalmoscopic findings, however, did not always correlate with the visual loss. Electrophysiological methods seem to provide substantial aid in the assessment of functional impairment in colobomatous defects. They provide a correct prognosis, before accompanying retinal or cerebral alterations reduce the vision further.
Descriptors		OPTIC NERVE DISEASES COLOBOMA CHILD ELECTRORETINOGRAPHY EVOKED POTENTIALS, VISUAL