Abstract
BackgroundUpbeat nystagmus in childhood is a rare phenomenon, which is classically associated with neurological or anterior visual pathway dysfunction. MethodsWe report a series of five infants with an intermittent upbeat nystagmus, without any other ocular or neurological abnormality, having spontaneously resolved before the age of 14 months. ResultsNystagmus beating frequency was between 1.5 and 2.5 Hz for all patients, amplitude was remarkably large due to a baseline position in downgaze. The nystagmus mostly occurred in supine position and could be triggered by head rotations in the supine position. Age of onset was from the first weeks of life to two months; age of resolution was 5–14 months. All infants underwent complete clinical examination with ophthalmological, oto-neurological and neurological assessments and MRI-scan. ConclusionsClinical characteristics of the nystagmus suggest an involvement of the otolithic system, with a secondary recalibration of the vestibulo-ocular pathways; however, no obvious vestibular abnormality was found. The pathophysiology of this nystagmus therefore remains unclear.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
