Most flashes and floaters need no treatment. But sometimes, they can be signs of a serious eye problem. Talk with your eye care provider right away if you see any new flashes or floaters.
When do flashes need treatment?
Flashes that appear all of a sudden or greatly increase in number may be a sign of a problem. They may be caused by the vitreous pulling on the retina. A retinal tear needs urgent treatment. It can cause the retina to detach from the back of your eye. Rapid vision loss can result. Your eye care provider can find the cause of flashes and decide if treatment is needed.
When do floaters need treatment?
A sudden increase in the number of floaters you see may be a sign of a tear in the retina or of some other eye problem. Over time, a tear can cause the retina to detach from the back of the eye. Your eye care provider can find out what is causing the floaters and advise a treatment plan, if needed.
Warning signs
If you have a sudden increase in floaters or flashes, or if part of your vision is missing, visit your eye care provider as soon as possible. These may be symptoms of a retinal tear or detachment, which can cause long-term (permanent) loss of vision. You will need a complete, dilated eye exam to find the problem.
Online Medical Reviewer: Chris Haupert MD
Online Medical Reviewer: Tara Novick BSN MSN
Online Medical Reviewer: Whitney Seltman MD
Date Last Reviewed: 03/01/2025
© 2000-2026 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
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