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Flashes of light
Flashes of light are "sparks" that you may see when you move your head. They can happen when the vitreous gel in your eye pulls or tugs (causes traction) on the retina. This creates nerve impulses that appear as flashes of light.
The flashes are easier to see when your eyes are closed or you are looking at a dark area. They may come and go.
Flashes of light are often harmless, but they can be a sign of a retinal problem and should be checked by a doctor right away.
Floaters and flashes: When to call
Call your doctor now or seek immediate medical care if:
- You have vision changes.
Watch closely for changes in your health, and be sure to contact your doctor if:
- You see new floaters.
- You see new flashes of light.
- You do not get better as expected.
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The content above contains general health information provided by Healthwise, Incorporated, and reviewed by its medical experts. This content should not replace the advice of your healthcare provider. Not all treatments or services described are offered as services by us. For recommended treatments, please consult your healthcare provider.