Microinvasive Glaucoma Surgery (MIGS)

Microinvasive Glaucoma Surgery (MIGS) helps many people manage glaucoma with safer, faster procedures and more stable eye pressure than traditional surgery.

What Is Microinvasive Glaucoma Surgery (MIGS)?

MIGS is a category of advanced glaucoma procedures designed to lower intraocular pressure using tiny, precision-engineered devices or minimally invasive techniques. These procedures target the eye’s natural drainage pathways, improving how fluid leaves the eye rather than creating a large new opening like traditional surgery. MIGS is usually done through microscopic incisions, often at the same time as cataract surgery, with the goal of safer pressure control, fewer complications, and, in many cases, fewer daily glaucoma drops.

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Why MIGS Is Changing Glaucoma Care

middle aged Hispanic man hiking confidently in the sunshine after Microinvasive Glaucoma Surgery (MIGS), enjoying clear vision and freedom outdoors after help from Southwest Eye INstitute

Traditional glaucoma surgeries are highly effective, but they can also come with larger incisions, longer healing times, and a greater risk. MIGS bridges the gap between drops, lasers, and major surgery by offering:

  • Minimal invasive techniques
  • Very small incisions
  • A strong safety profile
  • Faster return to normal activity
  • The ability to combine with cataract surgery
  • Long-term pressure reduction for mild to moderate glaucoma
  • For many patients, MIGS offers the freedom to reduce or even eliminate daily drops

Wondering If MIGS Is Right for You?

If glaucoma drops or laser treatments are not giving you the control you need, it may be time to look at Microinvasive Glaucoma Surgery (MIGS). Schedule an eye exam at Southwest Eye Institute to talk with a glaucoma specialist about whether MIGS belongs in your treatment plan.

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What to Expect During MIGS

MIGS is usually done as an outpatient procedure, most often at the same time as cataract surgery, though it can also be performed on its own. You are typically given numbing eye drops and light sedation so you can relax and stay comfortable while your surgeon works.

During MIGS, your surgeon uses a special operating microscope to see the tiny drainage structures inside your eye in great detail. Through a very small incision at the edge of the cornea, they guide a microscopic device or instrument into place. Depending on the type of MIGS used, the device can:

  • Gently open or bypass the eye’s natural drainage channels

  • Place a tiny stent to help fluid flow out more easily

  • Remove or reshape a small amount of tissue that is blocking fluid outflow

Most patients go home the same day, use prescribed drops to support healing, and return to many normal activities within a few days, as directed by their surgeon.

Close up view of the metallic trabecular microstent used in Microinvasive Glaucoma Surgery (MIGS) at Southwest Eye Institute

Recovery and Results

Older Hispanic woman in a modern bathroom tilting her head back and putting in glaucoma eye drops after Microinvasive Glaucoma Surgery (MIGS) with Southwest Eye Institute

After Microinvasive Glaucoma Surgery (MIGS), most patients go home the same day. It is common to notice mild irritation or blurred vision at first, which usually improves over the next few days as the eye heals. You will use prescription eye drops for several weeks to protect the eye and support a smooth recovery.

You can generally expect:

  • Mild temporary irritation or blurred vision

  • A short course of prescription eye drops

  • Gradual eye pressure reduction over weeks to months

  • A possible decrease in the number of glaucoma drops you need

MIGS does not cure glaucoma, but it can slow its progression and improve long-term pressure control, helping protect your vision over time.

Benefits of MIGS at Southwest Eye Institute

At Southwest Eye Institute, Microinvasive Glaucoma Surgery (MIGS) is part of a modern, interventional glaucoma strategy that focuses on safety, timing, and long-term vision protection. We do not use a one-size-fits-all approach.

Our surgeons emphasize:

  • Early intervention when appropriate

  • Personalized treatment planning

  • Careful, proven device selection

  • Ongoing follow-up and pressure monitoring

Every MIGS plan is tailored to the exact structure of your eye’s drainage system and your individual pressure goals, so your treatment matches the way your glaucoma behaves.

Older Hispanic man having his eye pressure checked at a slit lamp with a female optometrist before Microinvasive Glaucoma Surgery (MIGS) at Southwest Eye Institute