Downbeat nystagmus elicited by eyelid closure

Lemos, J; Pereira, D; Amorim, M; Santiago, B; Paiva, A; Cunha, L

http://hdl.handle.net/10400.4/2155

Use this identifier to reference this record.

Name:	Description:	Size:	Format:
Downbeat Nystagmus Elicited by Eyelid Closure.pdf		288.29 KB	Adobe PDF	Download

Send Feedback

Authors

Abstract(s)

We describe a patient with downbeat nystagmus (DBN) evoked only by eye closure. Brain and spinal cord magnetic resonance imaging revealed a T2 paramedian lesion in the left lower basis pontis and other white matter lesions consistent with multiple sclerosis. One potential mechanism for DBN in this case involves transverse ephaptic spread of excitation from areas that subserve coordinated lid closure to the decussating ventral tegmental tract.