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A partial-thickness 'scleral belt loop' for MicroShunt implant.

Michele Figus1,2, Francesco Sartini2, Martina Menchini1

  • 1Department of Surgical, Medical, Molecular Pathology and Critical Care Medicine, University of Pisa, Lungarno Antonio Pacinotti, Pisa, Italy.

Indian Journal of Ophthalmology
|February 21, 2025
PubMed
Summary

A novel surgical technique for the PreserFlo MicroShunt implant improves adherence and minimizes complications. This method reduces conjunctival erosion and inflammation, potentially decreasing the need for glaucoma surgery revisions.

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Area of Science:

  • Ophthalmology
  • Surgical Innovation

Background:

  • Glaucoma drainage devices like the PreserFlo MicroShunt aim to reduce intraocular pressure.
  • Standard implantation techniques can sometimes lead to complications such as conjunctival erosion and inflammation.

Purpose of the Study:

  • To introduce and describe a new surgical technique for PreserFlo MicroShunt implantation.
  • To enhance the adherence of the MicroShunt to the scleral profile and minimize postoperative complications.

Main Methods:

  • A partial-thickness scleral belt loop is created prior to Tenon's capsule and conjunctiva repositioning.
  • The MicroShunt's distal end is passed under the scleral belt, leaving the tip uncovered by the loop.

Main Results:

  • The technique ensures perfect adherence of the MicroShunt to the scleral profile in all cases.
  • The uncovered tip avoids stressing the conjunctival flap during eye movements, reducing erosion and inflammation.

Conclusions:

  • This modified technique is efficient and easily integrated into standard procedures without additional cost.
  • It effectively minimizes conjunctival complications and may reduce the need for filtration bleb surgical revisions.