Movement and Sound Phosphenes
in Multiple Sclerosis
Movement and Sound Phosphenes
Usually associated with optic neuritis, movement and sound phosphenes are brief spots of light brought on by eye movement and sudden sounds respectively. These lights are more noticeable in subdued ambient light or in a darkened room.
I have personally experienced these light flashes but have also seen patches of light which persist for several seconds. The patches of light resemble ghostly apparitions floating around the far corner of my bedroom. Of course, maybe my eyes are fine and my house is just haunted.
Like Lhermitte's sign, phosphenes are the result of mechanical aggravation of injured nerves. Movement phosphenes are usually brought on with side-to-side movement of the eyes. Brain cells that become hyper responsive to visual and auditory stimuli, may result in sound phosphenes.
Other conditions which may be responsible for phosphenes include detached retina, compressive optic neuropathy, and stroke. They can also be induced by a very strong magnetic field.
Treatments
See Optic Neuritis
References:
Multiple
Sclerosis Encyclopaedia
National
Library of Medicine
DISCLAIMER: The content of this site does not represent a qualified medical opinion. It is simply the information amassed by an MS patient while trying to understand this condition. You should seek the advice of your medical practitioner or neurologist before trying any treatment you may read about on this site. I am not a doctor, I am a patient.
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