Functional positional eye and eyelid movements.

ABSTRACT:

Background

Positional manoeuvres are an important part of the neurological examination, particularly in patients with vertigo where the presence and characteristics of provoked nystagmus can help differentiate central from peripheral neurological disorders.

Methods

Case series of functional positional eye and eyelid movements.

Results

We report four patients with functional eye and eyelid movements provoked during positional manoeuvres. The range of abnormalities observed included positional convergence spasm, brief functional saccadic oscillations, and excessive positional blinking mimicking upbeat nystagmus. The functional movements described were present on a background of pre-existing peripheral or central nystagmus, or positional vertigo.

Conclusion

Functi

SUBMITTER: Mustafa MM 

PROVIDER: S-EPMC7578154 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature