What is tube-shunt surgery?

Tube-shunt surgery, also known as glaucoma drainage implant surgery, is a surgical procedure used to treat glaucoma, a condition characterized by increased pressure within the eye.

This surgery involves the implantation of a small tube with a valve mechanism to create an alternate pathway for the drainage of aqueous humor, the fluid that circulates within the eye and helps maintain pressure.

- The tube is inserted into the eye and directed to a collection chamber, which is usually created under the conjunctiva, the clear outer covering of the white part of the eye.

- The aqueous humor flows through the tube and into the collection chamber, where it is gradually absorbed by the surrounding tissues, thus reducing intraocular pressure.

- The valve mechanism helps regulate the flow of aqueous humor and prevent excessive drainage.

Tube-shunt surgery is typically performed under local anesthesia on an outpatient basis, and it may be recommended when other glaucoma treatments, such as eye drops or laser surgery, have not effectively controlled the pressure.

It's important to discuss the risks, benefits, and alternatives to tube-shunt surgery with an ophthalmologist before undergoing the procedure.