Eye Floaters: When They’re Normal and When to Get Help Fast

What floaters are

The National Eye Institute (NEI) describes floaters as small dark shapes that drift across your vision: spots, threads, squiggly lines or even little cobwebs. As you age, tiny strands in the vitreous, the gel that fills the eye, clump together and cast shadows on the retina. Those shadows are what you see.

Why they’re usually harmless

Most people have floaters that come and go, and they often don’t need treatment. A common reason for new floaters with age is a posterior vitreous detachment, when the vitreous gel shrinks and pulls away from the back of the eye. The American Academy of Ophthalmology (AAO) describes it as a normal condition that usually happens on its own.

The catch is that the same process can occasionally tear the retina. That’s why new symptoms need a proper exam, even though most turn out to be harmless.

When floaters are an emergency

See an eye doctor right away, the same day, if you notice:

• A lot of new floaters that appear suddenly
• Flashes of light, with or without new floaters (see flashes of light in your vision)
• A dark shadow, like a curtain, or a blurry area in your side or central vision

These can be signs of a retinal tear or detachment. The AAO stresses that this isn’t something to wait on, because a detached retina left untreated can lead to permanent vision loss. Found early, tears and detachments can be treated.

How often is it serious? In a review of 17 studies, about 1 in 7 people who saw an eye doctor for sudden new floaters or flashes turned out to have a retinal tear. Most people are fine, but those odds are why the same-day exam matters.

Who’s at higher risk

Floaters become more common with age. The NEI notes that risk is also higher if you are very nearsighted, have diabetes, or have had cataract surgery. If any of these apply, it’s worth knowing the warning signs above.

Wondering about other changes too? See our guides to blurry vision after 50 and signs of cataracts.

Do floaters need treatment?

Usually not. The NEI says that if your floaters are caused by aging and don’t bother you, you probably won’t need any treatment. In the rare cases where floaters seriously interfere with vision, surgery to remove the vitreous (vitrectomy) is an option an eye specialist can discuss.

Can supplements help floaters?

We found no good evidence that any supplement or eye drop gets rid of floaters, and neither the NEI nor the AAO recommends one. Products marketed to “dissolve” floaters are something to be skeptical of.

What protects your sight here is acting fast on the warning signs, not a pill.