Visual electrophysiology in children

  • Jelka Brecelj
  • Branka Stirn-Kranjc
Keywords: visual evoked potentials, electroretinography, children, visual electrophysiology, paediatrics

Abstract

Background: Electrophysiological assessment of vision in children helps to recognise abnormal development of the visual system when it is still susceptible to medication and eventual correction. Visual electrophysiology provides information about the function of the retina (retinal pigment epithelium, cone and rod receptors, bipolar, amacrine, and ganglion cells), optic nerve, chiasmal and postchiasmal visual pathway, and visual cortex.

Methods: Electroretinograms (ERG) and visual evoked potentials (VEP) are recorded non-invasively; in infants are recorded simultaneously ERG with skin electrodes, while in older children separately ERG with HK loop electrode in accordance with ISCEV (International Society for Clinical Electrophysiology of Vision) recommendations.

Results: Clinical and electrophysiological changes in children with nystagmus, Leber’s congenital amaurosis, achromatopsia, congenital stationary night blindness, progressive retinal dystrophies, optic nerve hypoplasia, albinism, achiasmia, optic neuritis and visual pathway tumours are presented.

Conclusions: Electrophysiological tests can help to indicate the nature and the location of dysfunction in unclear ophthalmological and/or neurological cases.

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How to Cite
1.
Brecelj J, Stirn-Kranjc B. Visual electrophysiology in children. ZdravVestn [Internet]. 1 [cited 17Sep.2019];74(10). Available from: https://vestnik.szd.si/index.php/ZdravVest/article/view/2151
Section
Review article