What are eye floaters?

Inside the back of the eye is a clear gel called the vitreous. Over time, this gel can develop tiny collagen clumps or strands. These cast shadows on the retina and are seen as:

• Spots
• Threads or strands
• Cobwebs or small shapes drifting in your vision

Floaters are very common. Many patients I see as an eye surgeon have a few floaters and barely notice them. Others have dozens or hundreds that are constantly moving across their line of sight and are extremely disruptive.

The key point:

Floaters are usually not sight-threatening – they don’t cause blindness. But they can have a big impact on quality of life.

How can floaters be treated?

There are a few approaches to managing floaters. Not all are equally effective or suitable for every patient.

1. Eye drops (e.g. miotic drops like pilocarpine)

Some patients try pupil-constricting eye drops such as pilocarpine. These may slightly change how the light enters the eye and can:

• Make floaters a bit less noticeable in certain situations
• But they do not remove the floaters
• Symptoms usually do not disappear completely

For most patients, this is not a long-term solution.

2. Laser vitreolysis

Another option is laser vitreolysis (often using a YAG laser):

• The laser is aimed at the floater
• It breaks the floater into smaller pieces
• The idea is to make the floater less dense, and therefore less disturbing

However:

• The floater is not completely removed
• Results can be variable
• It may make symptoms more tolerable, but it is not a “clean slate” solution

3. Vitrectomy (floater removal surgery)

The most definitive treatment is vitrectomy, sometimes called a “floaterctomy”:

• The vitreous gel (where the floaters are) is surgically removed
• It is replaced with a clear fluid
• This physically removes the floaters from the eye

As an eye surgeon at the Lowveld Eye Institute, this is the option I use when floaters are truly life-affecting – but it’s very important to understand that it is still eye surgery and carries risks.

Who decides if floater surgery is needed?

With conditions like a retinal detachment, the decision is straightforward:
Without surgery, you will lose vision, so the benefit clearly outweighs the risk.

Floaters are different:

• Floaters do not cause blindness
• They are symptom-driven, not sight-threatening

Because of this, the key question is not “Does the surgeon think you need surgery?” but the question of:

“Do you feel you need surgery?”

Only the patient can truly know:

• How disturbing the floaters are
• How much they affect work, driving, reading, or sport
• How much they impact day-to-day quality of life

As an eye specialist, my job is to:

• Explain the condition
• Outline all options
• Explain the risks and benefits
• Help you make an informed decision

But ultimately, the benefit of floater removal surgery can only be judged by the person living with the symptoms.

Examples: same floater, different patient, different decision

To illustrate:

• A tennis player with a large central floater that constantly drifts into their line of sight when tracking the ball may feel completely unable to play. For them, surgery could be very important.
• Another person with a similar floater but a more sedentary lifestyle might hardly notice it and feel surgery is unnecessary.

The same floater can be:

• A major problem for one patient
• A minor annoyance for another

That’s why there is no “one size fits all” answer.

Risks of floater removal (vitrectomy) surgery

Modern retinal surgery is safer than it has ever been, but it is still surgery inside the eye and carries risks, including:

• Infection
• Post-operative inflammation or swelling in the retina (such as CME – cystoid macular oedema)
• Very occasionally, a retinal detachment after surgery

These risks are uncommon, but real. Therefore, we always weigh:

Risk of surgery
vs
Benefit of having clearer vision with fewer floaters

Because floaters don’t cause blindness, the threshold to accept surgical risk is higher than for conditions like retinal detachment.

Why time and neuroadaptation matter

In many patients, especially after a posterior vitreous detachment (PVD), floaters can improve over time.

A PVD occurs when:

• The vitreous gel pulls away from the back of the eye
• New floaters suddenly appear and can be very bothersome in the first days or weeks

However, over the next weeks to months:

• The floaters may move out of the central visual axis (up, down, or to the side)
• The brain often undergoes neuroadaptation – it learns to ignore the floaters

A good example is the blind spot everyone has in their vision – you don’t see a black hole because your brain “fills in” the missing area.

Similarly, with time:

• Many patients report that floaters are much less noticeable
• Some say symptoms are “almost gone” a few months after onset

For this reason, especially in new floaters after PVD, it’s usually wise not to rush into surgery. Giving the eye and brain time to adapt can mean surgery is no longer needed.

When is floater removal surgery reasonable?

Vitrectomy for floaters may be considered if:

• Floaters are long-standing, not improving over time
• They are large, central, or numerous
• They significantly affect work, driving, reading, or sport
• You’ve discussed the risks vs benefits with an experienced eye surgeon
• You personally feel the visual disturbance justifies the surgical risk

If all of the above are met, a carefully planned floaterctomy / vitrectomy can offer a major improvement in visual comfort.

Seeing an eye surgeon for floaters

If you live in Nelspruit, Mbombela, or greater Mpumalanga and are troubled by floaters, it’s important to:

1. Have a full retinal examination – especially with new floaters, to rule out retinal tears or detachment.
2. Discuss your symptoms honestly – how they affect your daily life.
3. Work with an eye surgeon to decide whether:
   1. Observation and time
   2. Non-surgical options
   3. Or vitrectomy (floater removal surgery)
      is the best route for you.

Need more information?

If your floaters are worrying you or affecting your lifestyle:

• Book an assessment with an eye surgeon in Mbombela at the Lowveld Eye Institute
• Get your retina and vitreous properly examined
• Discuss whether floater removal surgery is appropriate in your case

Every patient and every eye is different. The goal is always the same: to protect your sight, minimise risk, and improve your quality of life in the safest possible way.