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Trabeculectomy

Surgery that makes a new drainage path for the fluid in your eye, to bring dangerous pressure down.

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Close-up of the eye's drainage angle during trabeculectomy. A small flap in the white of the eye opens, fluid flows through a new channel into a small blister under the clear skin of the eye, which gently swells, and the pressure gauge falls from the red zone to the green.Eye pressureAnterior chamberScleral flapBleb under the clear skinNew channel

At a glance

  • Duration

    About 30 to 45 minutes

    Usually.

  • Anaesthesia

    Eye drops or an injection that numbs the eye

    You stay awake.

  • Going home

    Usually the same day

  • Back to routine

    Light tasks in a few days to weeks

    Dr. Kumar will advise.

What trabeculectomy is

Trabeculectomy (say: truh-BEK-yoo-LEK-tuh-mee) is an operation for glaucoma when drops and other treatment cannot keep the pressure low enough.

What the surgeon does

Dr. Kumar makes a tiny flap in the white of the eye and a small opening under it. Fluid from inside the eye now has a new way out. It collects in a soft, hidden pocket under the upper eyelid (called a bleb). From there the body takes it away. The flap is stitched closed.

Who it is for

People whose eye pressure stays too high on drops, or whose nerve is still getting worse. Surgery cannot undo damage that has happened. It aims to stop it getting worse. Dr. Kumar will tell you what applies to you.

Honest risks

  • Common: redness, a sore or scratchy eye, blur for some weeks, and a lump under the lid.
  • Pressure that goes too low, or the eye becoming flat or soft. It may need extra care.
  • Scarring that blocks the new path, so pressure rises again. Some people need extra treatment later.
  • Cataract can form sooner, and in rare cases there can be infection (including of the bleb), bleeding, or loss of sight.
  • Call us at once if: pain grows, the eye gets redder, you see pus or discharge, or your sight suddenly drops.

Before, on the day, after

The usual order of things. Dr. Kumar will tell you what applies to you.

  1. Before

    Check-up and tests

    Your pressure, nerve and side vision are checked. Tell Dr. Kumar about blood thinners and other medicines.

  2. Before

    Drops and plan

    Dr. Kumar tells you what to stop or continue. Arrange for someone to come with you.

  3. On the day

    The operation

    The eye is numbed and cleaned, the new path made and the flap stitched. You are awake.

  4. After

    Going home

    You go home with a cover and drops. Do not drive. You return for a check the next day or as told.

Recovery

How healing usually goes.

  • First day

    Rest

    The eye may be sore and blurred. Keep the cover on and rest.

  • First week

    Frequent visits

    You come back often so Dr. Kumar can check the pressure and the new path. Use drops exactly as told. Do not rub or press on the eye.

  • Four to six weeks

    Settling

    The eye settles and sight clears. You will still need pressure checks for years.

Questions about trabeculectomy

Will surgery cure my glaucoma?

No. It lowers the pressure and protects your nerve, but you will still need regular checks.

Will my sight get better?

Damage already done usually cannot be reversed. The aim is to keep the sight you have.

Will I still need drops?

Some people can stop drops, some still need them. Dr. Kumar will tell you.

Can I do heavy work after surgery?

Not at first. Avoid lifting, bending down and straining until Dr. Kumar says it is safe.

What if the pressure rises again?

The new path can scar over. If so, Dr. Kumar will advise extra treatment. Regular checks find this early.

Your eyes deserve one doctor who knows them.

Book a visit with Dr. Kumar, or call and we will help you choose a time.