- Our Locations: Swan St Eye Centre - 03 9428 0402
- Dingley Eye Centre - 03 9551 4244
- Our Locations:
Swan St Eye Centre - 03 9428 0402 - Dingley Eye Centre - 03 9551 4244
Eye floaters and flashes are among the most common symptoms patients ask us about in practice. They often spark worry, especially when they appear suddenly or unexpectedly. While these visual changes are usually harmless, they can sometimes point to underlying issues that need timely attention. In this guide, we answer the most common questions about floaters and flashes, helping you understand what they are, why they occur, and when to seek professional care.
Floaters are tiny spots, strands or cobweb-like shapes that drift through your field of vision. They’re caused by small clumps of collagen or cells floating within the vitreous, the clear, gel-like substance that fills the back of the eye. Although they appear to be in front of you, floaters are actually inside your eye, casting shadows on your retina.
Floaters commonly develop as part of the natural ageing process. Over time, the vitreous gel begins to shrink and liquefy, forming small clumps that move within the eye. This process, known as a posterior vitreous detachment (PVD), is normal but can sometimes tug on the retina, leading to flashes of light or, in rare cases, a retinal tear.
Flashes often appear as brief flickers or lightning-like streaks, especially in dim lighting or when you move your eyes quickly. They occur when the vitreous gel pulls or tugs on the retina, stimulating it mechanically. Persistent or sudden flashes can indicate that the retina is being strained, and that’s something we take seriously.
You should always seek urgent attention if:
These symptoms could indicate a retinal tear or detachment, which requires immediate treatment to prevent permanent vision loss. Visit our practice and speak to our specialists for a proper eye examination and consultation.
Most floaters are benign and simply part of normal ageing. However, it’s impossible to tell without an eye examination whether new floaters are harmless or a warning sign. That’s why it’s important to have your eyes checked as soon as possible, especially if the symptoms start suddenly.
During your eye exam, we’ll use dilating drops to widen your pupils and carefully inspect the vitreous and retina. If we suspect a retinal tear or detachment, you may also need retinal imaging or an urgent referral to an ophthalmologist for treatment.
Yes, many floaters fade or become less noticeable over time. The brain learns to “tune them out,” especially once they drift away from the central line of sight. However, large or centrally located floaters can remain persistent and bothersome for some individuals.
In most cases, no treatment is required. But for people with severe or vision-obstructing floaters, there are options:
Both options have risks, so they’re typically reserved for significant cases. Most people find reassurance and observation to be the best approach.
Yes. The likelihood increases with:
If you fall into any of these categories, it’s wise to be particularly aware of sudden visual changes.
While you can’t always prevent floaters or flashes, you can reduce your overall eye risk by:
Floaters and flashes are extremely common and often harmless, but they can also be the first signs of retinal issues that require prompt care. If you ever experience sudden changes in your vision, don’t wait it out, book an eye examination right away. Early detection remains the best protection for your sight.
