phosphene


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phosphene

 [fos´fēn]
an objective visual sensation that occurs with the eyes closed, and in the absence of retinal stimulation by visible light.

phos·phene

(fos'fēn),
Sensation of light produced by mechanical or electrical stimulation of the peripheral or central optic pathway of the nervous system.
[G. phōs, light, + phainō, to show]

phosphene

/phos·phene/ (fos´fēn) a sensation of light due to a stimulus other than light rays, e.g., a mechanical stimulus.

phosphene

(fŏs′fēn′)
n.
A sensation of light caused by excitation of the retina by mechanical or electrical means rather than by light, as when the eyeballs are pressed through closed lids.

phos·phene

(fos'fēn)
Sensation of light produced by mechanical or electrical stimulation of the peripheral or central optic pathway of the nervous system.
[G. phōs, light, + phainō, to show]

phosphene 

A visual sensation arising from stimulation of the retina by something other than light. The stimulation can be either electrical, mechanical (e.g. a blow to the head or pressure on the eyeball), or some electromagnetic waves such as X-rays. See entoptic image; photopsia; adequate stimulus.
References in periodicals archive ?
Patients report many kinds of TMS-induced phosphenes, but they don't generally mesh with descriptions of ball lightning.
Even those who once had good vision may have great difficulty learning to function with the low resolution and limited extent provided by retinal implants or the irregular phosphene configuration provided by cortical implants.
For instance, visual experiences of "seeing" phosphenes, seeing an object with blurred vision, seeing "double," having afterimages, and the like.
For toxic gases like arsine and phosphene, Schaff used a flame ionization technique.
Chlorene, phosphene and mustard gas were all deployed by one side or another during the conflict.
Deb Adair, Beau Borders; VISUAL EFFECTS SUPERVISOR, Jake Braver; VISUAL EFFECTS, Method Studios, Phosphene, Look Effects, CoSA VFX, Crafty Apes; wrestling coordinator.
A phosphene is a visual sensation of perceiving light at a time when no light is entering the retina.
First Dee Shaw says she can tell me what her Phosphene photos actually show - but she'll have to kill me.
It is understood Sir Derek injested aluminium phosphide, which creates the toxic gas phosphene when it comes into contact with moisture.
Infinitely mutable, the Death Cunt briefly surges again as an ecstatic and sightless woman who slides across our field of vision like a phosphene before vanishing.
As in the Nazi experiments, Japanese physicians injected subjects with potassium cyanide, jolted prisoners with electric shocks, and exposed subjects to phosphene gas.
Nelson Stoll (San Francisco), Thomas Varga (New York): SUPERVISING SOUND EDITOR, Robert Hein; RE-RECORDING MIXERS, Lee Dichter, Hein; VISUAL EFFECTS SUPERVISOR, Jake Braver; VISUAL EFFECTS, Phosphene, Prime Focus, Method Studios; ASSISTANT DIRECTOR, John M.