A Common Question I Hear in Clinic
At least once a week, someone sits in my chair and says, “I’ve been seeing these little specks floating around — should I be worried?” It’s one of the most common eye complaints out there, and the honest answer is: it depends on how they showed up.
What Floaters Actually Are
The inside of your eye is filled with a clear, gel-like substance called the vitreous. As we age, this gel becomes more liquid and tiny clumps of collagen fibers form within it. Those clumps cast shadows on your retina, which you perceive as small dots, threads, or cobwebs drifting across your vision, especially noticeable when looking at a bright sky or a plain white wall. Most floaters that have been around for months or years, and that stay roughly the same, are simply a normal part of getting older. They’re annoying, but not dangerous.
When Floaters Become an Emergency
The story changes when floaters show up suddenly. A sudden shower of new floaters, especially if paired with flashes of light (like brief lightning streaks at the edge of your vision), or a shadow or curtain creeping across part of your view, can signal that the vitreous is tugging on the retina or that the retina has actually torn or detached. A retinal detachment is a true eye emergency — it can lead to permanent vision loss if not treated within days, sometimes hours.
What To Do About It
If you notice a sudden increase in floaters, new flashes of light, or any curtain-like shadow in your peripheral vision, don’t wait for your next routine visit. Call an eye doctor the same day or go to urgent/emergency eye care. A dilated eye exam can look directly at the retina and vitreous and tell within minutes whether everything is intact or whether you need prompt treatment. People with high nearsightedness, a history of eye trauma, or previous cataract surgery are at somewhat higher risk for retinal tears, so it’s worth being extra alert if any of those apply to you.
The Simple Rule of Thumb
Old, stable, slowly-fading floaters: keep an eye on them and mention them at your next checkup. New, sudden floaters with flashes or a shadow: get seen right away. When in doubt, it costs you little to get checked, and it can save your sight if something serious is going on.