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.

© 2000-2026 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.
schedule icon

Schedule an Appointment

Find the right provider and schedule anytime.

View Providers
Related Articles
Read article
Eye Care
Understanding Corneal Ulcer

A corneal ulcer is an open sore on your cornea. In most cases, it's caused by an infection.

Read article
Eye Care
Viral Conjunctivitis

Viral conjunctivitis is a common infection of the eye. It is very contagious. The most common symptoms include redness, discharge from the eye, swollen eyelids, and a gritty or scratchy feeling in the eye.

Read article
Eye Care
Understanding Focusing Problems

Your vision depends on how light is focused in your eye. A look at 3 common problems with focusing that make vision blurry: farsightedness, nearsightedness, and astigmatism.

Read article
Eye Care
Eye Injury (Black Eye)

Detailed information on ecchymosis or bruising of the eye