from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The presence of perceived flashes of light
from the GNU version of the Collaborative International Dictionary of English
- n. An affection of the eye, in which the patient perceives luminous rays, flashes, coruscations, etc. See phosphene.
from The Century Dictionary and Cyclopedia
- n. The condition of having the sensation as of light or of flashes of light without external cause.
Even in these cases, however, the troubles were but slight, the chief being, apparently, photopsia (a subjective sensation of light) with otherwise normal conditions of pupil, vision, color-sense, and retina.