Stents for Glaucoma
What are Glaucoma Stents?
Glaucoma Stents are tiny devices used to treat glaucoma, particularly open-angle glaucoma, by helping to lower intraocular pressure (IOP). They are a minimally invasive surgical option designed to improve the outflow of fluid from the eye, reducing the pressure inside the eye and helping to protect the optic nerve from damage. In glaucoma, the fluid inside the eye doesn't drain properly, causing increased pressure. Stents are inserted into the drainage channels of the eye to help facilitate the outflow of this fluid, thereby lowering the IOP.
Types of Glaucoma Stents:
There are a few different types of glaucoma stents, including:
iStent and iStent inject:
These are small titanium stents that are placed into the eye's trabecular meshwork (the natural drainage system of the eye). The iStent inject features two stents for enhanced fluid drainage.
It’s often used in combination with cataract surgery for patients with mild to moderate glaucoma.
Hydrus Microstent:
A tiny device inserted into the eye’s drainage canal to widen it and improve fluid flow, lowering IOP.
Benefits of Glaucoma Stents:
Minimally Invasive: The procedure to insert a stent is typically much less invasive than traditional glaucoma surgery (such as a trabeculectomy), which can involve longer recovery times and higher risks.
Reduced Dependence on Eye Drops: Stents can reduce the need for daily eye drops or other treatments to control IOP.
Outpatient Procedure: The implantation of a glaucoma stent is done on an outpatient basis, often during cataract surgery.
Long-Lasting Results: Glaucoma stents offer long-term IOP reduction, with many patients experiencing sustained pressure control for several years after implantation.
Faster Recovery: Compared to traditional glaucoma surgery, stent insertion typically results in faster recovery, with most patients returning to normal activities within a few days.
Who is a Candidate for Glaucoma Stents?
Glaucoma stents may be suitable for people with:
Open-angle glaucoma (the most common form of glaucoma).
Mild to moderate glaucoma that hasn’t been fully controlled with eye drops or laser treatments.
People undergoing cataract surgery: Some stents, like the iStent, can be implanted at the same time as cataract surgery for added convenience.
After the Procedure:
Recovery: Most patients experience a quick recovery, with some mild discomfort or irritation in the eye that usually goes away within a few days.
Follow-up Visits: Regular follow-up visits are necessary to monitor the effectiveness of the stent and ensure the intraocular pressure stays within a safe range.
Medications: Even with a stent, you may still need eye drops to manage IOP, although the frequency or number of medications could be reduced.
Glaucoma stents are an excellent option for many patients seeking a minimally invasive, long-term solution for controlling intraocular pressure and protecting the optic nerve. They offer an alternative to traditional surgeries and can be combined with cataract surgery for added convenience.