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Cerebral ocular motor signs

C Pierrot-Deseilligny1, B Gaymard, R Müri

  • 1Service de Neurologie 1, Clinique Paul Castaigne, Hôpital de la Salpêtrière, Paris, France.

Journal of Neurology
|February 1, 1997
PubMed
Summary

Cerebral lesions affecting specific eye movement areas like the frontal eye field can cause saccade disturbances. Eye movement recordings aid in early diagnosis of neurodegenerative diseases.

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Area of Science:

  • Neuroscience
  • Ophthalmology
  • Neurology

Background:

  • Eye movement disturbances often result from cerebral lesions.
  • Understanding ocular motor areas is crucial for diagnosing neurological conditions.

Purpose of the Study:

  • To review eye movement disturbances caused by cerebral lesions.
  • To summarize the roles of different ocular motor areas in eye movement control.
  • To highlight the diagnostic utility of eye movement recordings in neurodegenerative diseases.

Main Methods:

  • Review of literature on eye movement disturbances and cerebral lesions.
  • Summary of the functions of cortical and subcortical eye motor areas.
  • Emphasis on the clinical examination and diagnostic value of eye movement recordings.

Main Results:

  • Cortical areas like the frontal eye field (FEF), supplementary eye field (SEF), and parietal eye field (PEF) trigger saccades.
  • FEF is linked to intentional saccades, PEF to reflexive saccades, and SEF to saccade sequences.
  • Bilateral lesions in these areas cause visible saccade disturbances, such as Balint's syndrome and ocular motor apraxia.
  • Other areas like the posterior parietal cortex and prefrontal cortex are involved in visuomotor integration, inhibition, and spatial memory.
  • Smooth pursuit is controlled by the FEF and the medial superior temporal area.
  • Basal ganglia lesions also cause eye movement disorders.
  • Eye movement recordings can aid in the early diagnosis of diseases like progressive supranuclear palsy and corticobasal degeneration.

Conclusions:

  • Specific cerebral lesions lead to distinct eye movement disorders.
  • Different ocular motor areas have specialized roles in controlling eye movements.
  • Eye movement analysis is a valuable tool for early detection of neurodegenerative diseases.

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