clinical features

Last reviewed 01/2018

These include:

  • rapid onset of episode of blindness, developing within 10 to 15 seconds
  • often the blindness develops as if a shade were drawn upward or downward over the eye, rarely sideward
  • lasts for seconds or minutes
  • clears slowly and uniformly from the reverse direction in which lost
  • may be an associated contralateral hemiparesis if the cause is carotid artery stenosis

Less commonly, there is a generalised dimness of vision rather than a complete loss or only part of the visual field may be lost.