Uhthoff Phenomenon

Uhthoff Phenomenon.


  • Transient monocular visual loss with increases in body temperature is known as the Uhthoff
    phenomenon.
  • Most commonly seen in – optic neuritis associated with demyelinating disease
  • Mechanism – The phenomenon is thought to arise as a result of transient conduction block within the optic nerve.
  • Vision returns to baseline when the body temperature returns to normal.

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