Dismiss Modal

Types

What Are Flashes and Floaters?

Choose a preferred language

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.

© 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.

Make an Appointment

Make an Appointment

Find a Doctor

Find a Doctor

Find a Location

Find a Location
Related Articles
Read article
Eye Care
Iritis

Iritis is the inflammation of your iris and the anterior chamber of your eye. Iritis can lead to serious problems. It can cause severe vision loss and even blindness.

Read article
Eye Care
Acute Narrow-Angle Glaucoma

Narrow-angle glaucoma occurs when the eye's fluid drainage system is blocked. It may cause permanent blindness within days if not treated.

Read article
Eye Care
Foreign Object in the Cornea

A foreign object can get into the cornea. A trapped speck of dirt or grit is often a minor problem. But anything metal, or an object that goes through (pierces) your cornea, can cause severe damage. Here's what you need to know about getting emergency medical care.

Read article
Eye Care
Black Eye

In most cases, a black eye is a minor injury and can be treated at home. But there are times when you should get medical care right away.