Eye floaters are small shapes that drift across your vision, especially against bright or plain backgrounds. They are usually harmless and caused by tiny changes in the gel inside the eye.
What causes floaters
With age, the vitreous gel becomes more watery and forms small clumps. These cast shadows on the retina, which you see as spots, strands, or cobwebs.
- Floaters move when you move your eyes and seem to drift away when you try to look at them.
- They are more common in short-sighted people and after cataract surgery.
- Sudden onset may signal a posterior vitreous detachment.
- Most floaters fade into the background as the brain adapts.
- They do not come from the surface of the eye.
When floaters are a concern
New floaters can occasionally signal a retinal tear or detachment. Prompt examination is important to rule out serious causes.
- Seek urgent help if you notice a sudden shower of floaters or flashing lights.
- A dark curtain or shadow in vision needs immediate emergency assessment.
- Once the retina is confirmed healthy, ongoing monitoring is usually enough.
- In rare severe cases, surgery or laser may be considered to reduce floaters.
- Regular eye checks are recommended if you are highly short-sighted.
