Doctor insights on:
Split Second Light Flashes
What's the difference between photopsia and visual seizures? I had split-second flashes of light so i saw my eye md, but he found nothing wrong.
Photopsia is a flash: Of light that will nearly always occur unilaterally, or in one eye only. A migraine causes "scintillating scotomas". This is a scintillating absence of vision which typically does not lateralize - meaning it is not possible to say that it is in one eye or the other. A "visual seizure" or occipital lobe seizure mimics retinal migraine as both are due to occipital lobe dysfunction. ...Read moreSee 1 more doctor answer
Usually: Light flashes mostly are due to changes in the fluids in the back of the eye. The retina is jostled when this happens and responds with a light flash. You should see your ophthalmologist if this persists more than a day, if there are lots of floaters, if the vision drops, or if you see a grey -veiny veil in the vision. Do not delay as sometimes this can be a retinal detachment. ...Read more
Light flashing: Medically called photopsias, these are the sensation of light streaking from retinal stimulation. This can occur if the eye is struck, and occurs spontaneously in middle to older age from fluid changes in the eye. If associated with floaters and loss of vision, you need to see your ophthalmologist to rule out detachment of the retina. ...Read more
Hard to say: This depends a lot on your age, and if you have any other medical problems or not. Sometimes eye conditions can cause flashes of light, and other times it can be part of a neurologic condition, like migraines, or vascular problem related to blood flow to the eyes. I would start by seeing my regular doctor or eye doctor and discuss this with them. ...Read more
Retinal detachment: This could be due to detachment of the vitrous (jelly like substance in the eye) but it could also be an early warning of detachment of the retina. You should see your ophthamologist (eye doctor) to make sure. Retinal detachment can be treated and blindness prevented if caught early enough. ...Read more
What are flashes of light in the vision at night and how do you describe it or how do you see them?
Seeing flashes of light while looking at phone. Husband confirmed they aren't really there. What is this?
Difference between phosphenes and flashes of light (vision). How to distinguish them qualitatively and quantitatively?
Similar: A phosphene is a phenomenon characterized by the experience of seeing light without light actually entering the eye. Flashes of light in the vision if flashing light are not actually present would be the same thing. This is usually caused by tugging of the vitreous (jelly of the eye) on the retina or ocular migraines, where the occiptal lobe perceives flashes of light generating in the brain. ...Read more
Are controllable, predictable flashes of light in vision usually benign? Like every time i look up quickly in dark, i see a small flash at the bottom.
Not always!: Posterior vitreous detachment. This is a situation where the vitreous(jelly) of the eye detaches (not a retinal detachment), it then "crumples" up leaving dots, spots, strands of blurry vitreous; i.e. The "floater". When it pulls away (initially tugs), it causes flashes. You should have an exam to ensure the incident did not tear the retina, which could lead to a retinal detachment. ...Read moreSee 1 more doctor answer
Get checked: Much like you feel pain when you pull on your skin, you see flashes when something tugs on your retina. It is usually a sign of the vitreous (the gel in your eye) shrinking and pulling on your retina and this can result in a retinal tear. You should get checked by an eye doc asap. ...Read more