Avtor/Urednik		Ikeda, H
Naslov		Electrodiagnosis of the primary afferent visual system: past, present and future
Tip		članek
Vir		Zdrav Vestn
Vol. in št.		Letnik 62, št. Suppl 1
Leto izdaje		1993
Obseg		str. 57-65
Jezik		eng
Abstrakt		The experience of recording clinical electrooculogram (EOG), electroretinogram (ERG) and visual evoked potentials (VEP) since the late 1960s is described. As the number of patients referred to the electrodiagnostic service escalated to reach 4,826, an attempt has been made to overview the paramount data. In this paper, the following three topics have been chosen from the data obtained with a simultaneous recording of averaged ERGs and VEPs and the lifgt induced change in the EOG. Firstly, the use of ERG/VEP ratio for visual prognosis of babies who showed no visual following. Secondly, the use of ERGs and VEPs evoked by a 60 degrees dim blue flash delivered at 1 Hz, and those evoked by a 5 degrees red spot flickered at 30 Hz for the assessment of rod and cone retinal function respectively. Thirdly, the use of the ERG/VEP ratios and ERG of VEP delays together with EOG light rise to differentiate different categories of optic nerve diseases. It is concluded that simultaneous recordings of ERG and VEP using non-invasive electrodes, provided that many different stimulating conditions are used, may play a unique role in elucidating the functional (physiological) state of the intact human visual system in health and disease.
Deskriptorji		MACULAR DEGENERATION OPTIC ATROPHY OPTIC NEURITIS INFANT ELECTRORETINOGRAPHY ELECTROOCULOGRAPHY