phosphene

phosphene is a topic covered in the Taber's Medical Dictionary.

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(fos′fēn″)

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[Gr. phos, light, + phainein, to show]
A flash of light caused by chemical, electrical or mechanical stimulation of the retina, as when rubbing a closed eye.

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(fos′fēn″)

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[Gr. phos, light, + phainein, to show]
A flash of light caused by chemical, electrical or mechanical stimulation of the retina, as when rubbing a closed eye.

There's more to see -- the rest of this topic is available only to subscribers.