Trabeculectomy and the first weeks after glaucoma surgery

If glaucoma continues to worsen despite treatment, your surgeon may recommend a trabeculectomy. The operation creates a new route for fluid to leave the eye. Its purpose is to reach a pressure low enough to protect remaining vision. It cannot bring back sight already lost to optic nerve damage. [2]

In this article

• Where the fluid goes
• Why the early visits matter
• What to clarify before going home
• How to judge the outcome
• Will I be able to feel the bleb?

Where the fluid goes

The surgeon makes a small opening in the white wall of the eye and covers it with a flap that controls flow. Fluid collects beneath the surface tissue, usually under the upper lid, in a small reservoir called a bleb. From there the body gradually absorbs it. This is different from a blocked tear duct. Tears drain from the surface of the eye. [1]

Why the early visits matter

Healing tissue can close the drain too much, or the opening can initially allow too much fluid through. At follow-up, the team checks eye pressure and the bleb and can adjust treatment as the eye heals. Ask how often you will need visits, whether you will need a ride and which prescription drops to use in each eye. The operated eye may have a different plan from the other one. [3]

What to clarify before going home

Ask when you may shower normally, lift heavy objects, return to work and drive. Keep the surgeon’s urgent contact details handy. Increasing redness, pain, discharge or worsening vision needs urgent assessment. Even long after recovery, a sudden painful red eye around a filtering bleb is a reason to seek care right away. [1]

How to judge the outcome

Your clearest measure of success may be the pressure and test results over time. If you still need drops, ask how the result compares with your target and whether further adjustments are planned. [3]

Will I be able to feel the bleb?

The bleb usually lies beneath the upper lid. Some people notice a different sensation when blinking. Avoid rubbing the eye. If the sensation is new or accompanies redness, pain or declining vision, contact the surgical team urgently. [1]

Sources

1. Cambridge University Hospitals · Trabeculectomy
2. NEI · Glaucoma surgery
3. Johns Hopkins Medicine · Glaucoma surgery recovery

Related reading

• Glaucoma surgery and laser options

This article provides general education. Your ophthalmologist can advise you based on your eye examination.