Vitreous Floaters
Have you ever noticed “flies” or “spider-webs” in your vision that move around and don’t go away?
This very common condition can range from a minor inconvenience to significant impairment in function.
What Are Vitreous Floaters?
Vitreous floaters are tiny specks, or cobweb-like shapes that appear to float in your field of vision (many patients describe them as insects or flies). They are caused by small clumps of gel-like material (vitreous) in the back of your eye.
One way to describe it would be to imagine your eye like a snow-globe, and the little “snow specks” floating about causing your symptoms.
Floaters are like the "snow" in a snowglobe (although it doesn't snow like this in Melbourne!)
Why Do They Happen?
As we age or get wiser, the gel-like substance (vitreous) in our eye undergoes changes. It becomes more liquid and forms small pieces floating within the eye. The shadows that these clumps cause are seen as floaters.
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Are They Harmful?
In most cases, floaters are harmless and don't require treatment. However, if you suddenly see a shower of new floaters or if they're accompanied by flashes of light, it's important to see an eye doctor promptly. These symptoms could be a sign of a more serious issue such as a retinal tear or detachment.
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Can They Go Away on Their Own?
Floaters may become less noticeable over time as your brain learns to ignore them. However, they usually do not completely disappear on their own.
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I am really annoyed by them, can they be treated?
Yes. There are 2 known ways to treat vitreous floaters.
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Laser - a laser is used to blast large floaters into smaller pieces. I wouldn’t recommend this however, as the floaters aren’t effectively removed, and most patients will eventually want a more definitive treatment.
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Vitrectomy - this is a surgical procedure using specialised instruments to “vacuum” the vitreous floaters and gel from within the eye.
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How effective is a vitrectomy for vitreous floaters? Are there any risks?
Very effective! In my experience, all patients who have had a vitrectomy for floaters have been very happy. The troublesome floaters are gone, there is more clarity without the shadows, and quality of life greatly improves! Patients who have undergone this procedure have consistently reported a significant improvement in their overall satisfaction.
Nevertheless, as with any surgical intervention, there are potential risks, albeit rare. The most serious complication is the development of an eye infection, which could potentially lead to severe vision impairment. It is crucial to note, however, that such instances are exceedingly uncommon, with studies indicating an approximate occurrence rate of 1 in 2500 cases.
For this reason, I typically advise patients to wait for a few months before opting for surgery. If the presence of floaters significantly impacts your daily life and functionality, I would be happy to engage in a thorough discussion tailored to your specific concerns and needs.
Click here for a more thorough discussion on risks of eye surgery.
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What can I expect from surgery? How long will I need to recover?
A vitrectomy for floaters is a relatively short and straightforward day procedure, typically lasting about 30 minutes. During the procedure, patients are comfortably positioned on their back, administered with a relaxing medication through a drip, and subsequently provided with local anesthesia to ensure the eye remains numb. Throughout, you will remain conscious, surrounded by the soothing backdrop of background music and the cheerful banter of our dedicated theatre staff. Before you know it, the surgery will have concluded!
Following the procedure, your eye will be gently padded with gauze and shielded with a clear plastic cover. After this you will be brought to the recovery bay and will be able to go home with a friend or family member. It's worth noting that I often introduce a small amount of air into your eye, which may cause temporary blurriness during the initial week. Many patients find it intriguing to observe a gradual decrease in this effect, akin to a "spirit level," as the air naturally dissipates over time. Subsequent to this adjustment period, your vision should return to its usual state, now free from the bothersome floaters!
You should find yourself able to resume your regular activities and work within approximately a week's time. However, I would recommend refraining from activities such as swimming or those that carry a risk of introducing dirt or dust into the eye for at least four weeks post-surgery. This precaution will help ensure a smooth and uncomplicated recovery process.