Eye Floaters: What Are Those Strange Little Specks?

Image description: A beautiful outdoor park setting with some strange grey blobs floating into view.

 

 

Have you ever noticed tiny specks, squiggly lines, or cobweb-like shapes moving across your vision? These drifting shapes often appear when looking at a bright background, like a clear sky or a white wall. You may have even tried chasing one around your eye to get a better look! These are known as eye floaters, and while some people find them a bit annoying, they’re completely natural and usually harmless.

What Causes Eye Floaters?

Floaters are caused by small clumps of gel, debris, or cells within the vitreous. This is the clear, jelly like substance that fills the space between the lens and retina in your eye. As we age, the vitreous gradually shrinks and becomes more liquid.

During this process, microscopic fibres within the vitreous can clump together, casting shadows on the retina, the part of your eye sensitive to light. These shadows are what we see as floaters.

Some people may notice floaters more often when they’re tired or after spending long periods focusing on a screen. While they can appear at any age, they are more common as we get older, especially after the age of 50. Some key causes include:

• Eye surgeries, such as cataract removal
• Inflammation inside the eye (uveitis)
• Eye injuries
• Diabetic retinopathy
• Nearsightedness (myopia)

You can read more about cataracts and related conditions on our Eye Health information page.

When Should I Worry About Eye Floaters?

In most cases, floaters are harmless, age-related changes and do not pose a threat to your vision. However, there are some situations where floaters could indicate a more serious problem, such as a retinal detachment, infection, inflammation, or haemorrhage (blood) inside the eye. You should seek medical attention immediately if you notice:

• A sudden increase in floaters
• Flashes of light in your vision
• A dark curtain or shadow moving across your visual field
• Blurred or sudden loss of vision

These symptoms could indicate a retinal tear or detachment, which requires prompt treatment to preserve vision. Delaying medical attention in such cases could result in permanent vision loss.

How Are Eye Floaters Diagnosed?

To assess floaters, your eye doctor may perform a dilated eye exam. This allows them to check the back of your eye for retinal damage or other abnormalities. In some cases, imaging tools, like optical coherence tomography (OCT), or ultrasound scans are used to investigate further.

Even if floaters turn out to be harmless, it’s worth confirming this with a health professional. Knowing for certain can give you peace of mind.

How Do I Get Rid of Floaters in My Eye?

Most floaters become less noticeable over time as your brain learns to filter them out. However, if they significantly interfere with your vision or daily life, there are treatment options available.

• Vitrectomy: The most common option, this is a surgery to remove the vitreous and replace it with a clear saline solution. This is usually reserved for severe cases, as it carries some risks, including infection or retinal detachment.
• Laser vitreolysis: A less invasive treatment under investigation, where a laser breaks up larger floaters. It’s not widely available and may not suit everyone.
• In recent years, a micronutrient supplement containing the amino acid L-lysine, zinc, and other antioxidants has been developed. This is a non-invasive option that may minimise the appearance of floaters for some people. Talk to your optometrist or ophthalmologist to see if it is right for you.

The good news is that most floaters do not require treatment and will fade from your awareness as your brain adjusts. If you are unsure about your symptoms or experience any sudden changes, it’s important to get your eyes checked.

For more information on eye health and related conditions, visit our Eye Health Information page.

Can Eye Floaters Be Prevented?

There’s no guaranteed way to prevent floaters, but good eye health habits can help:

• Wear protective eyewear during high-risk activities
• Manage conditions like diabetes and high blood pressure
• Stay hydrated and avoid eye strain
• Schedule routine eye exams, especially if you’ve had eye surgeries

Good health habits, like a balanced diet, regular exercise, and a decent night’s sleep, also support healthy vision.