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photopsia
(redirected from Photopsias)

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photopsia /pho·top·sia/ (fo-top´se-ah) appearance as of sparks or flashes in retinal irritation.
pho·top·si·a (f-tps-)
n.
The sensation of seeing lights, sparks, or colors caused by retinal or cerebral disease. Also called photopsy.
photopsia [fo-top´se-ah]
an appearance as of sparks or flashes, in retinal irritation.
photopsia 
Hallucinatory perceptions such as sparks, lights or colours arising in the absence of light stimuli and observed when the eyes are closed. They occur often as a result of diseases of the optic nerve, retina (e.g. retinal and vitreous detachment) or the brain, migraine, or they can also occur with pressure upon the closed eye. See floaters; flashes; cytomegalovirus retinitis; Fuchs' spot.
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We observed the patient in June 2002 and found a bilateral paleness of optic discs and the inability to count fingers with either eye; at that time, the patient complained of disturbing photopsias.
Grand Rounds: could occupational exposure to n-Hexane and other ... by Mattioli, Stefano / Environmental Health Perspectives
 
 
 
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