Convergence-evoked nystagmus.
case_series · Level IV
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- Record sourced from PubMed, PMID 2296365.
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Abstract
We describe 17 patients with acquired convergence-evoked nystagmus (CEN). Vertical CEN was most common (82%), with upbeat much more frequent than downbeat. The most common diagnoses were multiple sclerosis (41%) and brainstem infarction (29%). CEN is an easily elicited bedside sign of posterior fossa dysfunction and can be a clinically useful manifestation. In cases of isolated optic neuritis, the presence of CEN may indicate dissemination of neurologic disease.
Medical subject headings
- Convergence, Ocular
- Eye Movements
- Nystagmus, Pathologic