Magnetophosphene
Magnetophosphene
Magnetophosphene (pronounced: mag-ne-to-phos-phene) is a medical term referring to the perception of light or flashes induced by a magnetic field. The term is derived from the Greek words "magneto" meaning magnet and "phosphene" referring to the phenomenon of seeing light without light actually entering the eye.
Causes
Magnetophosphene is typically caused by Transcranial Magnetic Stimulation (TMS), a non-invasive procedure that uses magnetic fields to stimulate nerve cells in the brain. It is also associated with exposure to high-intensity magnetic fields, such as those found in MRI machines.
Symptoms
The primary symptom of magnetophosphene is the perception of light or flashes when exposed to a magnetic field. This can occur even when the eyes are closed or in complete darkness.
Related Terms
- Phosphene: The phenomenon of seeing light without light actually entering the eye.
- Magnetic Field: A field of force produced by a magnetic object or particle.
- Transcranial Magnetic Stimulation (TMS): A non-invasive procedure that uses magnetic fields to stimulate nerve cells in the brain.
See Also
- Visual Cortex: The part of the brain responsible for processing visual information.
- Retina: The light-sensitive layer of tissue at the back of the inner eye.
External links
- Medical encyclopedia article on Magnetophosphene
- Wikipedia's article - Magnetophosphene
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