Eye Floaters: When They’re Normal and When You Should See a Doctor
Eye floaters are small spots, threads, or cobweb-like shapes that drift across your field of vision. They are a common part of aging and are usually harmless. Although they can be annoying, most people adapt to them over time, and they rarely affect vision significantly.
What Causes Eye Floaters?
The most common cause of eye floaters is age-related changes in the vitreous, the clear gel that fills the inside of the eye. As the vitreous gradually shrinks and becomes more liquid with age, tiny fibers can clump together and cast shadows on the retina, creating the appearance of floating spots.
Eye floaters may also occur after eye injuries, inflammation inside the eye, bleeding into the vitreous, or certain eye surgeries. People who are highly nearsighted may also be more likely to experience them.
When Are Eye Floaters a Warning Sign?
While most eye floaters are harmless, a sudden increase in their number can sometimes indicate a serious eye problem, such as a retinal tear or retinal detachment. These conditions require immediate medical attention to help prevent permanent vision loss.
Seek urgent eye care if you notice:
- A sudden shower of new floaters
- Flashes of light, especially in your peripheral vision
- A dark curtain or shadow covering part of your vision
- Sudden blurred vision or loss of side vision
- Eye pain or redness along with new floaters
How Are Eye Floaters Diagnosed?
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