[Etiological assessment of a nystagmus in childhood]

Abstract

Apart from the latent nystagmus, which arises as a consequence of failure to develop binocular vision, every case of childhood nystagmus needs an etiological assessment. Knowledge of the pathogenesis of the various types of nystagmus guides this assessment, particularly considering the morphological characteristics of the nystagmus. The clinical ophthalmologic examination is complemented by OCT and electrophysiologic testing (ERG, VEP). If this testing is normal, an MRI and genetic assessment are required.

Keywords: Acquired pendular nystagmus; Amblyopie nystagmique; Bilan de nystagmus; Congenital nystagmus; Manifest latent nystagmus; Neurological nystagmus; Nystagmic amblyopia; Nystagmus; Nystagmus congénital; Nystagmus manifeste-latent; Nystagmus neurologique; Nystagmus work-up; Spasmus nutans.