Phos'phene noun [ Greek ... light + ... to show.] (Physiol.) A luminous impression produced through excitation of the retina by some cause other than the impingement upon it of rays of light, as by pressure upon the eyeball when the lids are closed. ...
Found on http://www.encyclo.co.uk/webster/P/75
<ophthalmology, physiology> Visual sensations arising from mechanical stimulation by pressure upon the eyeball when the lids are closed. It can also be produced by electrical stimulation of the eyeball. ... It is a luminous impression produced through excitation of the retina by some cause oth...
Found on http://www.mondofacto.com/facts/dictionary?phosphene
(fos´fēn) an objective visual sensation that occurs with the eyes closed, and in the absence of retinal stimulation by visible light.
Found on http://www.encyclo.co.uk/local/21001
• (n.) A luminous impression produced through excitation of the retina by some cause other than the impingement upon it of rays of light, as by pressure upon the eyeball when the lids are closed. Cf. After-image.
Found on http://thinkexist.com/dictionary/meaning/phosphene/
(from the article `radiation`) Generally speaking, humans do not sense a moderate radiation field; however, small doses of radiation (less than 0.01 Gy) can produce phosphene, a ... ...can also activate the receptor if they are sufficiently intense. Thus, one may `see` pressure when, for example, th...
Found on http://www.britannica.com/eb/a-z/p/59
phosphene A sensation of seeing light caused by pressure or electrical stimulation of the eye. A phosphene is an entoptic phenomenon (visual effect whose source is within the eye) characterized by the sensation of light from mechanical, electrical, or magnetic stimulation of the eye's retina, or fr...
Found on http://www.wordinfo.info/words/index/info/view_unit/2616/
A phosphene is a phenomenon characterized by the experience of seeing light without light actually entering the eye. The word phosphene comes from the Greek words phos (light) and phainein (to show). Phosphenes are flashes of light, often associated with optic neuritis, induced by movement or sound...
Found on http://en.wikipedia.org/wiki/Phosphene
Type: Term Pronunciation: fos′fēn Definitions: 1. Sensation of light produced by mechanical or electrical stimulation of the peripheral or central optic pathway of the nervous system.
Found on http://www.medilexicon.com/medicaldictionary.php?t=68438
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