How does a drainage device for Glaucoma work?
A glaucoma drainage device lowers eye pressure by rerouting fluid from inside the eye through a tiny tube to a small plate, where the body reabsorbs it, essentially bypassing a failing natural drain. This protects the optic nerve from further damage. These devices are usually reserved for advanced glaucoma or pressure that other treatments can't control, and they are serious surgery. Keeping every follow-up visit is essential, because pressure can run too high or too low while the eye heals.
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Some people with advanced glaucoma may be eligible for drainage implants to help reduce the eye's intraocular pressure. This drainage device redirects the outflow of fluid through a small tube into an outlet chamber or tiny pocket where the fluid is then reabsorbed by the body. This lowers pressure inside of the eye, which can prevent further damage to the optic nerve. During the weeks following surgery, eye drops must be used to prevent inflammation and infection. Frequent follow-up visits may be necessary to determine if any further treatment is required.
Medical sources
- aao.org/eye-health/diseases/trabeculectomy-12
- americanglaucomasociety.net/patient-family-resources/glaucoma-basics-faqs
This page and video are for general patient education and are not a substitute for a medical examination, diagnosis, or treatment. Eye conditions vary by individual. For advice about your eyes, schedule an evaluation with May Eye Care Center. In an emergency, call 911.
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