Neuroscience/Acute visual loss

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Objectives

  • Be familiar with major causes of AVL
  • Be able to assess a patient for AVL
  • Be able to know when to refer
  • Which questions to ask
  • Appropriate eye exam – Pupil, Visual Fields, and Ophthalmoscopy

Wiki

Wikipedia:Visual loss

Exam

  • Difference between optic neuritis and retrobulbar optic neuritis
    1. Pain when moving the eye in retrobulbar optic neuritis
    2. Normal looking optic disk in retrobulb
  • Papilitis from papilledema
    • Pap: Vision is usually reduced; relative afferent pupillary defect; asymmetrical
  • Five things that are done to treat vascular occlusion:
    1. Palmar compressions
    2. Retrobulbar injection of an anaesthetic
    3. Contact an optho
    4. Hyperventilation into a bag
    5. Paracentesis of the anterior chamber
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