Are floaters in your vision normal? 

You’re looking at a clear blue sky or a blank white wall, and something drifts across your field of vision: a small speck, a squiggly line, maybe something that looks like a tiny cobweb. You blink, try to focus on it, and it moves away. If this sounds familiar, you’re seeing what eye doctors call floaters, and if you’ve never had them explained to you, they can be genuinely unsettling the first time you notice one.

The good news is that floaters are extremely common and usually harmless. The important part is knowing when floaters are just floaters, and when they’re a signal that something more serious is going on.

What floaters are

Floaters are tiny clumps of protein or cell debris inside the vitreous, the clear gel-like substance that fills the middle of your eye. As you age, that gel becomes more liquid and starts to slightly shrink and pull away from the back of the eye. The debris that forms during this process casts small shadows on your retina, which is what you perceive as spots, threads, or cobweb shapes drifting through your vision.

They’re most noticeable against bright, plain backgrounds like a clear sky or a computer screen, and they tend to move when your eyes move, which is part of what makes them so hard to look directly at.

Why floaters become more common with age

Most people start noticing floaters in their 50s and 60s, though they can appear earlier, especially in people who are nearsighted or who have had eye surgery or trauma. This natural process is called posterior vitreous detachment, and it’s a normal part of aging for the eye. It’s uncomfortable to notice, but on its own, it isn’t dangerous.

If you’ve had a handful of floaters for years and they haven’t changed, that’s typically nothing to worry about. Your brain also tends to adapt over time and filter them out, which is why long-standing floaters often become less noticeable even though they haven’t gone away.

When floaters signal a real problem

The distinction that matters is between floaters that have been stable for a while and floaters that show up suddenly or change quickly. A sudden shower of new floaters, especially if it’s accompanied by flashes of light or a shadow creeping in from the edge of your vision like a curtain, can be a sign of a retinal tear or retinal detachment. This is a medical emergency, not something to wait out.

Here’s what should prompt a same-day call to your eye doctor:

• A sudden increase in the number of floaters
• New flashes of light, especially in your peripheral vision
• A dark shadow or curtain effect blocking part of your vision
• Any of the above following an eye injury or recent surgery

Retinal detachment can lead to permanent vision loss if it isn’t treated quickly, but if caught early, it’s very treatable. The sooner you’re seen, the better the outcome.

How we check for what’s causing your floaters

When a patient comes in with new or worsening floaters, we perform a full dilated eye exam to obtain a clear view of the retina and vitreous. We also use Optos retinal imaging, which provides a wide, detailed view of the back of the eye without the need to dilate in most cases. This lets us quickly and comfortably rule out tears, detachment, or other retinal issues.

If the exam shows everything looks normal and the floaters are simply the harmless kind, we’ll let you know there’s nothing to treat. If we do see something concerning, we can act on it right away or refer you for the appropriate treatment.

Living with ordinary floaters

For floaters that aren’t caused by anything serious, treatment isn’t typically necessary or recommended. In rare cases where floaters are severe enough to interfere significantly with vision, a vitrectomy can be performed to remove them, but this is uncommon and carries its own risks, so it’s reserved for extreme cases.

For most people, the best approach is simply to know the difference between a normal floater and a warning sign, and to get checked whenever something changes.

If you’re noticing new floaters or anything that feels different from what you’re used to, don’t wait to find out if it’s serious. Schedule a comprehensive eye exam with us, and we’ll take a close look to make sure your eyes are healthy.