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 eye. Normally the vitreous is clear. This is so light can pass through the eye and reach the retina. But some problems can cause blood and debris to block the light. Scar tissue in your vitreous can also wrinkle 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:
Infection inside your eye
Severe eye injury
A hole 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. Vitrectomy can often restore lost vision. You might need a vitrectomy done as an emergency if you have an eye injury. In other cases, your eye healthcare provider 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 saltwater (saline) solution. Or it may be replaced by air or gas. This will depend on the problem that is being treated.
Risks of vitrectomy
All surgery has some risks. The risks of vitrectomy include:
High pressure in the eye
New retinal detachment caused by the surgery
Damage to the lens
Increased rate of cataract formation
Problems with eye sight, such as double vision
Change in refractive error
Repair is not successful
Need for a repeat surgery
June 09, 2017
Haupert, Christopher L., MD,Pierce-Smith, Daphne, RN, MSN, CCRC