Health Encyclopedia
Search Clinical Content Search Patient Health Library
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A-Z Listings

What Are Flashes and Floaters?

Have you ever seen flashes of light, stars, or streaks that aren’t really there? A few of these flashes are seen by everyone from time to time. Usually you see them in one eye at a time. Flashes are often caused by the gel (vitreous) inside your eye pulling on the retina. The retina is a membrane that lines the inside of your eye.

Floaters look like dark specks, clouds, threads, or spiderwebs moving through your eyesight. Most people see them once in a while. Floaters may be pieces of gel or other material floating inside your eye. They are usually harmless.

Three-quarter view of cross-sectioned eye showing shrinking vitreous pulling on retina.Three-quarter view of cross-sectioned eye showing shrinking vitreous and floaters.

Who gets flashes?

As you age or if you are nearsighted, you are more likely to see flashes. Nearsightedness is when you have fuzzy distance vision. Sometimes flashes are a sign of other eye problems that should be evaluated and may need care.

Who gets floaters?

The older you get, the more likely you’ll notice floaters. Floaters can also be caused by an eye injury or surgery. People who are very nearsighted may get more floaters. If floaters appear suddenly or greatly increase in number, see your healthcare provider as soon as possible. This may be a sign of an eye problem.

Online Medical Reviewer: Chris Haupert MD
Online Medical Reviewer: Tara Novick BSN MSN
Online Medical Reviewer: Whitney Seltman MD
Date Last Reviewed: 12/1/2022
© 2000-2025 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.
Powered by Krames by WebMD Ignite

These resources and their content are provided by a third party for informational purposes and do not necessarily reflect the values and positions of Ascension, its ministries, or its subsidiaries.

About StayWell | Terms of Use | Privacy Policy | Disclaimer

The Services may integrate with Third-Party Apps or contain third-party content or provide links to third-party websites. For example, the Services may integrate with Third-Party App providers to provide you with information. You authorize Ascension to transmit information about You to and receive information about You from applicable third parties.
You agree that Ascension is not responsible for Third-Party Apps, third-party content or third-party websites, and does not make any endorsements, representations or warranties regarding the same. Your use thereof is at Your own risk and subject to the third party’s terms and conditions, as applicable. By using a Third-Party App or third-party content or websites, You agree to the applicable third party’s terms and conditions, even if Ascension does not present them to You at the time of Your use.