Phosphene

[fɔsfi:n]

Definition

(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.

Inputed by Henrietta

Definition

n. a brilliant coloured spectrum seen when the finger is pressed into the internal corner of the eye.

Editor: Rena