Equis ISSN 2398-2977

Neurology: vision testing - pupillary light reflex

Synonym(s): PLR

Contributor(s): Keith Barnett, Dennis E Brooks

Introduction

  • An essential part of the clinical, neurologic   Neurology: examination - adult  and ophthalmologic examination   Neurology: vision testing - overview  of the horse.
  • Afferent sensory pathway:
    • Optic nerve   →   optic chiasm   →    lateral geniculate nucleus   →    ipsi- and contralateral midbrain occulomotor nuclei.
  • Efferent pathway:
    • Occulomotor nuclei   →   oculomotor nerve   →   ciliary ganglion   →    pupillary constrictor muscles.

Requirements

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Preparation

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Procedure

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Further Reading

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