What Is MIGS? Minimally Invasive Glaucoma Surgery Explained
If you have glaucoma, you may have heard the term MIGS and wondered whether it's right for you. As a glaucoma specialist, it's one of the most common questions I get. Here's a plain explanation.
The problem MIGS solves
Your eye constantly makes a clear fluid and drains it out through a tiny filter called the trabecular meshwork. In the most common type of glaucoma, that drain gets sluggish. Pressure builds up and slowly damages the optic nerve.
For decades, the options were drops, laser, or major surgery. Drops work, but many people struggle to use them every day, and they can sting, redden the eye or cost a lot. Traditional surgery lowers pressure well but has a longer recovery and more risk.
What MIGS is
MIGS is a group of procedures that improve the eye's natural drainage through microscopic incisions. Some, like the iStent infinite and Hydrus, are tiny stents that hold the eye's drain open. Others, like the XEN Gel Stent and AlloFlo, create a new path for fluid to leave the eye. I choose among them based on your type and stage of glaucoma.
Compared with traditional glaucoma surgery, MIGS generally means:
- Smaller incisions and less tissue disturbance
- A faster recovery, often similar to cataract surgery alone
- A lower risk of serious complications
The trade-off is that MIGS lowers pressure more modestly. It's best suited to mild to moderate glaucoma. Advanced glaucoma may still need traditional surgery.
Why MIGS is often done with cataract surgery
Many people with glaucoma also develop cataracts. Since we're already working inside the eye during cataract surgery, adding MIGS takes only a few extra minutes and uses the same incision. One trip to the operating room treats both problems.
For many of my patients, the result is clearer vision from the cataract surgery, plus lower pressure and fewer drops from the MIGS.
Is MIGS right for you?
You may be a good candidate if you have mild to moderate open-angle glaucoma and:
- You're planning cataract surgery
- You're using one or more drops and would like to use fewer
- Drops cause side effects, or are hard to remember or afford
The best way to know is a full glaucoma evaluation. I was the first ophthalmologist to perform MIGS in Seguin, and I offer it to patients across San Antonio, New Braunfels and Seguin. More about seeing a glaucoma specialist.
Call 830-379-3937 to schedule a glaucoma evaluation.
For educational purposes. This page explains common conditions and treatments to help you prepare for your visit. Your exam determines the right plan for your eyes.
