Trabeculotomy: best clinics abroad

Trabeculotomy is glaucoma surgery that opens part of the eye's natural drainage pathway to help aqueous fluid leave the eye and lower intraocular pressure. It targets the trabecular meshwork and access to Schlemm's canal. Techniques include an external approach and internal approaches such as gonioscopy-assisted transluminal trabeculotomy, known as GATT. The operation differs from trabeculectomy, which creates a separate drainage route under the eye's outer covering.

It is an established option for certain childhood glaucomas and may also be considered for selected adults, depending on the drainage angle, disease severity and required pressure reduction. Its purpose is to protect remaining vision rather than reverse optic nerve damage. A specialist assessment abroad may help families with complex congenital glaucoma or patients comparing surgical options after previous treatment. Ask about the exact technique, the surgeon's experience with that type of glaucoma and arrangements for early pressure checks. Continued drops or another operation may still be needed.

Who may benefit from trabeculotomy?

Suitability depends on the type of glaucoma, drainage anatomy and target eye pressure. Angle surgery is commonly considered for primary congenital glaucoma. In adults, selected internal techniques may treat open-angle disease, sometimes alongside cataract surgery. A narrow or damaged drainage angle may require a different approach. Discuss drops, laser treatment and other operations with an ophthalmology specialist rather than choosing surgery by its name.

Examinations and preparation

Assessment includes pressure measurements, examination of the drainage angle and optic nerve, and visual field or imaging tests when possible. In young children, reliable examination may require anaesthesia; corneal clarity, eye size and refractive needs also matter. Bring records of earlier eye surgery and current medicines. Agree instructions for glaucoma drops, blood thinners and anaesthesia with the team; do not change treatment independently. If travelling, arrange assistance after surgery and enough time for the first postoperative reviews.

How the operation works

The surgeon opens the trabecular tissue to improve access to the natural outflow system. An external technique approaches Schlemm's canal through the outer eye tissues. Internal techniques use a small corneal incision; GATT passes a fine suture or catheter through the canal before opening the meshwork. The extent treated varies. Not every technique uses the same instrument or treats the whole circumference. Adults may receive local anaesthesia with sedation if needed; children generally require general anaesthesia. Cataract surgery is combined only when indicated.

Recovery, risks and costs

Temporary blurred vision, irritation and blood in the front chamber can occur. Pressure can fluctuate, so early examinations and prescribed postoperative drops are important. Infection, inflammation, injury to eye structures and reduced vision are possible; pressure may remain inadequately controlled. Seek urgent eye assessment for severe pain, sudden visual deterioration or increasing abnormal discharge. Follow the surgeon's instructions for eye protection, washing, exercise and travel. Long-term glaucoma monitoring remains necessary. Children may additionally need glasses and treatment for amblyopia. Costs depend on technique, anaesthesia, any combined surgery and follow-up.

Frequently asked questions

Will the operation restore sight already lost to glaucoma?

No. Pressure reduction aims to limit further damage; lost optic nerve function is not restored.

Can I stop glaucoma drops afterwards?

Only according to the treating team's instructions. Some patients continue or restart pressure-lowering medicines.

Is trabeculotomy the same as trabeculectomy?

No. Trabeculotomy opens the natural drainage pathway, while trabeculectomy creates a separate filtering route.