phosphene
Kelime Anlamı :

1. fizyol.
2. kapalı göze tazyik sonucunda meydana gelen ışıklı hayal.
3. Göz küresine parmakla tazyik yapıldığı zaman, retinanın uyarılması sonucu kişinin kendisini aydınlık bir çevre içindeymişgibi hissedişi, bu durumla belirgin sübjektif his.
4. Kapalı göze basınç sonucunda meydana gelen ışık hayali, fosfen.
Tanımlar :
1. 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.
from The American Heritage® Dictionary of the English Language, 4th Edition
1. A sensation of lights caused by mechanical or electrical (rather than optical) stimulation of the retina.
from Wiktionary, Creative Commons Attribution/Share-Alike License
1. 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.
from the GNU version of the Collaborative International Dictionary of English
1. the luminous image produced by pressing the eyeball with the finger or otherwise. it is due to the direct mechanical stimulation of the retina.
from The Century Dictionary and Cyclopedia