Vitrectomy surgery is a microsurgical procedure used to treat certain conditions affecting the retina and vitreous. The vitreous is the clear, gel-like substance that fills the back part of the eye.

During the procedure, the ophthalmic surgeon removes some or all of the vitreous. This may be necessary when the vitreous contains blood or debris, has become cloudy, is pulling on the retina, or needs to be removed to give the surgeon access to treat a retinal problem.

Depending on the condition, the surgeon may replace the vitreous with:

• A sterile saline solution
• An air or gas bubble
• Silicone oil

The material used depends on the retinal condition and the support required after surgery. Vitrectomy is also known as pars plana vitrectomy (PPV) and is an important procedure in modern vitreoretinal surgery.

Why Is the Vitreous Removed During Eye Surgery?

The vitreous is normally transparent, allowing light to pass through the eye and reach the retina. However, bleeding, inflammation, scar tissue or other changes can interfere with vision or affect the retina.

Removing the vitreous can help the surgeon:

• Clear blood or other material blocking the passage of light
• Remove scar tissue pulling on or wrinkling the retina
• Gain access to repair a retinal tear or detachment
• Treat selected macular conditions
• Remove a foreign object following an eye injury
• Address selected complications following cataract surgery

The purpose of surgery is not always to improve vision immediately. In some cases, vitrectomy is performed to prevent further retinal damage and preserve as much vision as possible.

A retina specialist may recommend vitrectomy surgery when other treatments cannot adequately address the problem or when surgery offers the best option for repairing the affected structures inside the eye.

Vitrectomy for Retinal Detachment

A retinal detachment occurs when the retina separates from the back of the eye and can cause significant vision loss. Vitrectomy may help relieve traction, repair retinal tears and reattach the retina. A gas bubble or silicone oil may be used to support healing.

Vitrectomy for Vitreous Haemorrhage

A vitreous haemorrhage occurs when blood enters the vitreous cavity, causing cloudy, hazy or reduced vision. Vitrectomy can remove persistent bleeding and allow the retina to be examined and treated.

Vitrectomy for Diabetic Retinopathy

In advanced diabetic retinopathy, abnormal blood vessels and scar tissue can cause vitreous bleeding or pull on the retina. Vitrectomy may be considered for non-clearing vitreous haemorrhage, significant scar tissue or tractional retinal detachment.

Vitrectomy for a Macular Hole

A macular hole can cause blurred or distorted central vision. During vitrectomy surgery, the surgeon removes the vitreous and addresses traction around the macula. A gas bubble may be used to support healing.

Vitrectomy for Macular Pucker

A macular pucker, or epiretinal membrane, can cause distorted vision, blurred central vision and difficulty reading. Vitrectomy may allow the surgeon to remove the membrane when it significantly affects vision.

Vitrectomy for Eye Injuries

Serious eye injuries can cause bleeding, retinal damage or leave a foreign object inside the eye. Vitrectomy eye surgery may be required to remove abnormal material and repair the affected structures.

Vitrectomy for Eye Infection

In selected cases of severe eye infection, known as endophthalmitis, vitrectomy may help remove infected material and support further treatment. Vitrectomy may also be used in selected cases involving retained lens material following cataract surgery, severe vitreoretinal traction, intraocular foreign bodies and other conditions requiring access to the vitreous cavity.

The need for surgery depends on the specific condition, its severity and the expected benefits of treatment.

Vitrectomy is generally performed as a day-care or outpatient procedure, although the approach depends on the patient's condition and surgical requirements. The surgery may be carried out under local anaesthesia with appropriate sedation or, in selected cases, general anaesthesia.

During vitrectomy surgery, the surgeon typically:

1. Makes very small openings in the white part of the eye, called the sclera.
2. Uses specialised microscopic instruments to access the vitreous cavity.
3. Removes the vitreous gel using a fine surgical cutter.
4. Removes blood, scar tissue or other material where required.
5. Repairs the underlying retinal problem.
6. Uses laser treatment where necessary to seal retinal tears or treat abnormal blood vessels.
7. Places saline, air, a gas bubble or silicone oil if internal support is required.

Modern vitrectomy systems use very small instruments and precise visualisation technology to perform delicate surgery within the eye.

The duration of vitrectomy eye surgery varies according to the underlying condition and complexity of the repair.

What to Expect After Vitrectomy Surgery

Recovery after vitrectomy surgery depends on why the surgery was performed, the condition of the retina and whether a gas bubble or silicone oil was used.

Temporary symptoms may include:

• Blurred vision
• Eye redness
• Mild discomfort
• A scratchy or gritty sensation
• Light sensitivity
• Mild swelling around the eye

Your ophthalmologist will prescribe appropriate eye drops and explain how to use them.

Some patients notice gradual improvement in vision over several weeks. However, visual recovery can take longer, particularly when the underlying retinal disease has already caused significant damage. 

A successful surgery may sometimes mean stabilising vision or preventing further loss rather than restoring vision completely. Your retina specialist can provide a more realistic expectation based on your diagnosis.

What Should I Avoid After Vitrectomy?

Your postoperative instructions should always take priority because restrictions vary according to the type of surgery.

Your ophthalmologist may advise you to:

• Avoid rubbing or pressing on the eye
• Use prescribed medicines as directed
• Avoid swimming until your doctor says it is safe
• Delay strenuous activity during early recovery
• Avoid air travel if you have a gas bubble

If a gas bubble is used, your surgeon may also recommend a specific head position to support retinal healing.

How Long Does Recovery Take After Vitrectomy Surgery?

There is no single recovery timeline that applies to everyone. Initial healing may take several weeks, while visual recovery can continue for longer.

Recovery depends on factors such as:

• The reason for surgery
• The severity of the retinal condition
• Whether the macula was affected
• Whether a retinal detachment was present
• Whether a gas bubble or silicone oil was used
• Your overall eye health
• Whether further procedures are required

Vision can remain significantly blurred while a gas bubble is present. The visual outcome also depends on the amount of retinal damage that existed before surgery.

Regular follow-up appointments allow your ophthalmologist to monitor healing, eye pressure and the position of the retina.

What Are the Risks of Vitrectomy Surgery?

Vitrectomy is a well-established procedure, but like all eye surgeries, it carries potential risks.

Possible complications include:

• Infection
• Bleeding
• Increased or reduced pressure inside the eye
• Retinal tears or retinal detachment
• Cataract development or faster progression of an existing cataract
• Damage to structures inside the eye
• Persistent or worsening vision problems
• The need for additional treatment or surgery

The likelihood of complications varies depending on the underlying condition and complexity of surgery. Before recommending the procedure, your surgeon will discuss the expected benefits, potential risks and available alternatives for your individual case.

When Should You See an Eye Doctor Urgently?

Sudden vision changes should not be ignored. Seek urgent assessment if you experience:

• A sudden loss or significant reduction in vision
• A sudden increase in floaters
• Flashes of light
• A curtain or shadow moving across your vision
• New distortion of central vision
• Sudden severe blurring or misty vision
• Significant eye pain following surgery
• Rapidly worsening vision after a procedure

These symptoms can occur with retinal or other serious eye conditions and require prompt evaluation.

If you are searching for an eye doctor near me, ophthalmologist near me or an eye clinic near me because of sudden visual symptoms, seek professional eye care rather than waiting for the symptoms to settle.