Yes, vision can improve after vitrectomy, but the amount of improvement and how quickly it occurs can vary significantly from one person to another.
Vitrectomy is performed for several conditions affecting the retina and vitreous, and the final visual outcome depends largely on the underlying eye problem, the condition of the retina before surgery and how the eye heals afterward.
*AI-generated image - for illustration only. Clinical accuracy is not guaranteed.
It is also important to understand that vision may initially appear worse after surgery. This is particularly common when a gas or air bubble has been placed inside the eye.
The bubble can make vision very blurred until it gradually becomes smaller or disappears. For a broader overview of vitrectomy, the conditions it can treat and how the procedure is performed, see the Vitrectomy page.
Does Vision Improve After Vitrectomy?
In many cases, vision gradually improves as the eye heals after vitrectomy. However, surgery does not guarantee that vision will return to its previous level or become completely normal. The main purpose of vitrectomy is to treat the underlying problem affecting the vitreous or retina.
Depending on the condition, this may involve removing blood or scar tissue, repairing a retinal detachment or treating a macular problem. Once the underlying condition has been treated successfully, the eye may gradually regain some of the vision affected by the disease.
How much vision returns depends on factors such as the type and severity of the original condition, whether the central retina was affected and whether permanent retinal damage occurred before surgery.
Why Is Vision Blurry Immediately After Vitrectomy?
Blurred vision is common immediately after vitrectomy and does not necessarily mean that the surgery has not worked.
One of the main reasons is the material placed inside the eye to support healing. Depending on the procedure, the surgeon may leave air, a gas bubble or silicone oil inside the eye. A gas bubble can make vision particularly blurred while it remains in place.
*AI-generated image - for illustration only. Clinical accuracy is not guaranteed.
As the gas bubble gradually becomes smaller, more of the patient's natural vision may become visible. The time required for the bubble to disappear depends on the type of gas used. Some bubbles may remain for several weeks, while longer-acting gases can remain for longer.
Inflammation, swelling and the use of postoperative eye drops can also temporarily affect vision during the early recovery period.
How Long Does It Take for Vision to Improve After Vitrectomy?
There is no single recovery timeline that applies to everyone. Some people notice gradual changes in vision within the first few weeks, while visual recovery may continue for several months.
If a gas bubble was used, vision may remain significantly blurred until the bubble begins to dissipate. As it becomes smaller, patients may notice a moving line or edge across their vision, with the clearer area gradually becoming larger.
Even after the bubble has disappeared, the retina may continue to heal. The final visual result may therefore take time to become clear.
Some patients may continue to experience changes in vision for several months after surgery, depending on the condition that was treated and the extent of retinal damage.
What Determines How Much Vision Returns?
The outcome after vitrectomy is influenced by several factors. The most important is often the condition of the retina before surgery.
The Underlying Eye Condition
Vitrectomy can be performed for different problems, including retinal detachment, vitreous haemorrhage, macular hole, epiretinal membrane and complications associated with diabetic eye disease. Each condition can affect vision differently.
For example, an eye treated before significant permanent retinal damage has occurred may have a different visual outcome from an eye in which the retina has already been severely affected.
Whether the Macula Was Affected
The macula is the central part of the retina responsible for detailed vision. Conditions that affect the macula can have a significant effect on reading, recognising faces and seeing fine details.
*AI-generated image - for illustration only. Clinical accuracy is not guaranteed.
If the macula was damaged before surgery, the improvement in central vision may be limited even when the surgery successfully treats the underlying retinal problem.
How Long the Condition Was Present
The duration of the underlying condition can also influence visual recovery. Some retinal problems can cause progressive or permanent damage if they remain untreated for a long time. This means that treating the eye successfully does not always mean that all vision lost before surgery can be restored.
The Type of Surgery Performed
Vitrectomy is not a single procedure performed in exactly the same way for every patient. The surgeon may combine it with laser treatment, retinal repair or other techniques depending on the condition. The use of a gas bubble or silicone oil can also influence how vision appears during recovery.
Can Vision Be Better Than Before Vitrectomy?
In some patients, vision can improve compared with the level they had before surgery, particularly when the underlying problem was causing significant visual disturbance and could be successfully treated.
For example, removing blood from the vitreous may allow light to reach the retina more clearly, while repairing a retinal problem may help preserve or improve useful vision.
However, improvement should not be interpreted as a guarantee that vision will return completely to normal. If the underlying condition has caused permanent damage to the retina, some visual limitations may remain.
What If Vision Does Not Improve After Vitrectomy?
Not seeing a significant improvement immediately after surgery does not necessarily mean that the procedure has failed. The eye may still be healing, and visual recovery can take time.
However, if vision remains significantly reduced or worsens unexpectedly, your ophthalmologist may need to determine why. Possible reasons can include the original retinal damage, persistent swelling, cataract development, changes in eye pressure or another postoperative complication.
Follow-up examinations are therefore an important part of recovery. Your ophthalmologist can assess the retina and other structures of the eye and determine whether healing is progressing as expected.
*AI-generated image - for illustration only. Clinical accuracy is not guaranteed.
The Bottom Line
Vision can improve after vitrectomy, but recovery is different for every patient. The amount of improvement depends largely on the condition being treated, the health of the retina before surgery, whether the macula was affected and whether permanent retinal damage has already occurred.
It is also normal for vision to be significantly blurred during the early recovery period, particularly when a gas bubble has been used. As the eye heals and the bubble gradually disappears, vision may improve, but the final outcome can take weeks or months to become clear.
Regular follow-up with your ophthalmologist is important for monitoring the retina and assessing visual recovery. If you experience sudden vision loss, severe pain, increasing redness, new flashes or a sudden increase in floaters, seek prompt medical attention.
