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Understanding Vitrectomy

Three-quarter view of cross-sectioned eye showing vitreous.A vitrectomy is a type of eye surgery to treat problems with the retina and vitreous. During the surgery, your surgeon removes the vitreous and replaces it with another solution.

What are the retina and vitreous?

The retina is a layer of cells at the back of your eye. These cells use light to send visual information to your brain. The vitreous is a gel-like substance that fills the middle of your eye. Normally the vitreous is clear. This is so light can pass through the eye and reach the retina. Certain problems can cause blood and debris to block the light. Scar tissue in your vitreous can also displace or tear your retina. All of this can harm your vision.

Why vitrectomy is done

A vitrectomy is one type of treatment for any of these eye problems:

  • Diabetic retinopathy

  • Detached retina

  • Vitreous hemorrhage

  • Infection inside your eye

  • Severe eye injury

  • A break in the central part of your retina (macula)

  • A wrinkle in the central part of your retina

  • Certain problems after cataract surgery

All of these problems can cause vision loss. If not treated, some of them can even lead to blindness. In some cases, vitrectomy can restore lost vision. You might need a vitrectomy done as an emergency if you have any eye injury.  In other cases, your eye doctor will schedule your vitrectomy in advance. Vitrectomy is sometimes done for a detached retina. Removing the vitreous gives better access to your retina and decreases the tension on your retina.

How vitrectomy is done

A small cut is made in the white part of the eye (sclera). The gel-like vitreous is removed, along with any scar tissue or other material. Repairs are made to the eye as needed. The vitreous is then replaced with another type of fluid. It may be replaced with silicone oil or saline.

Risks of vitrectomy

All surgery has some risks. The risks of vitrectomy include:

  • Infection

  • Too much bleeding

  • High pressure in the eye

  • New retinal detachment caused by the surgery

  • Damage to the lens

  • Increased rate of cataract formation

  • Problems with eye movement after surgery

  • Change in refractive error

  • Unsuccessful repair

  • Need for a repeat surgery

© 2000-2017 The StayWell Company, LLC. 780 Township Line Road, Yardley, PA 19067. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.