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Glaucoma Stents

What is Minimally Invasive Glaucoma Surgery?

Minimally Invasive Glaucoma Surgery (MIGS) refers to a group of surgical procedures that aim to treat glaucoma by creating a new drainage pathway for the aqueous humour (the fluid inside the eye) to reduce intraocular pressure (IOP). These procedures are designed to be less invasive than traditional glaucoma surgeries, offering potential benefits such as quicker recovery times and reduced risk of complications.


Who is suitable for MIGS?

MIGS procedures are generally considered suitable for patients with mild to moderate open-angle glaucoma, the most common form of glaucoma. They may also be considered for patients who haven't responded well to medications or laser treatments but don't yet require more invasive surgical options.

Types of Glaucoma Stents

There are several types of glaucoma stents used in MIGS procedures. Some of the common ones include:

  • iStent: A small titanium stent is inserted into Schlemm's canal, enhancing aqueous outflow.
  • Hydrus: A micro stent implanted to open and support Schlemm's canal and provide a larger pathway for aqueous humour drainage.


Glaucoma Stents (MIGS) Procedure

  • Anaesthesia: Most MIGS procedures are performed under local anaesthesia with twilight sedation. Some procedures might require general anaesthesia.
  • Procedure Steps: The specific steps will vary depending on the type of MIGS procedure. Generally, a small incision is made, and the stent or device is implanted to create a new drainage pathway for the aqueous humour.
  • Duration: MIGS procedures are usually relatively short, often taking 15 minutes.
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