Type of Surgery
Information
Last updated: 02/17/2009
The procedure is performed in an operating room, usually under local anesthetic. However, some ophthalmologists give patients only a topical anesthetic. A trabeculectomy involves removing a tiny piece of the eye-ball,
where...
the cornea connects to the sclera, to create a flap that allows fluid to escape the anterior chamber without deflating the eye. The area is called the trabeculum. After the procedure, fluid can flow out onto the eye's surface, where it is absorbed by the conjunctiva, the transparent membrane that lines the sclera and the eyelids.
Sometimes, an additional piece is taken from the iris so that anterior chamber fluid can also flow backward into the vitreous. This procedure is called an iridectomy.
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Other Information
Trabeculectomy is a surgical procedure used in the treatment of glaucoma to relieve intraocular pressure by removing part of the eye's trabecular meshwork and adjacent structures. It is the most common glaucoma surgery performed and allows drainage of aqueous humor from within the eye to underneath the conjunctiva where it is absorbed. This outpatient procedure is most commonly performed under monitored anesthesia care in a half awake state using a retrobulbar block or a combination of topical and subtenon (Tenon's capsule) anesthesia.
Other Information
Surgeons aim for results of 20/20 or better so that you can perform most daily activities without your glasses. However, there is a possibility that after surgery, you may need to wear reading glasses or corrective lenses for at least some activities.
-Eye Surgery Education Council
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