What are is the role of ExPress shunt (Alcon) in the surgical treatment of primary open-angle glaucoma (POAG)?

Updated: Mar 16, 2020
  • Author: Kristin Schmid Biggerstaff, MD; Chief Editor: Inci Irak Dersu, MD, MPH  more...
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New devices are as follows:

  • ExPress shunt ® (Alcon) (see below)

    See the list below:

    • Erosion problems if used without scleral flap
    • Now mainly used underneath trabeculectomy flap to better regulate flow through sclerostomy
    • Advantage of avoiding surgical iridectomy in patients at high risk of bleeding
    • Easy to learn, appears effective, and complication rate that is similar to that of trabeculectomy

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