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Related Experiment Video

Updated: Nov 26, 2025

Iris Fixation via External Pentagram Suturing

Iris Fixation via External Pentagram Suturing

Published on: May 5, 2022

Thirty-three-gauge hypodermic needle-guided iris suturing technique.

Steven G Safran¹, Sarah G Bonaffini, Usma Chatha

¹From Lawrenceville, New Jersey (Safran); Philadelphia College of Osteopathic Medicine, Philadelphia, Pennsylvania (Bonaffini, Chatha).

Journal of Cataract and Refractive Surgery

|December 10, 2020

Summary

A novel 33-gauge needle-guided iris suturing technique offers improved ergonomics and reduced tissue trauma for anterior segment reconstruction. This method successfully repaired iris defects in 15 patients, achieving excellent visual and cosmetic results.

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Last Updated: Nov 26, 2025

Iris Fixation via External Pentagram Suturing

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Published on: May 5, 2022

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Puncture-Induced Iris Neovascularization as a Mouse Model of Rubeosis Iridis

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Published on: March 8, 2018

Area of Science:

Ophthalmology
Surgical Techniques
Anterior Segment Surgery

Background:

Iris defects and pathology present challenges in complex anterior segment reconstruction.
Existing techniques, like the Safran sewing machine technique, have limitations.
Improved surgical tools are needed for precise iris repair.

Purpose of the Study:

To describe a new 33-gauge hypodermic needle-guided iris suturing technique.
To demonstrate its application in complex anterior segment reconstruction for various iris pathologies.
To evaluate its efficacy and safety compared to previous methods.

Main Methods:

Utilized a 33-gauge hypodermic needle loaded with 10-0 Prolene suture.
Introduced and manipulated the suture directly within the anterior chamber.
Eliminated the need for a traditional needle holder, enhancing surgeon ergonomics.
Applied the technique in 15 patients with diverse iris conditions.

Main Results:

Successful repair of iris defects in all 15 patients.
Achieved satisfactory visual and cosmetic outcomes.
No intraoperative or postoperative complications were reported.
Demonstrated versatility by combining multiple suturing strategies.

Conclusions:

The 33-gauge needle-guided technique is effective for iris repair in complex cases.
It offers improved ergonomics and minimizes trauma to surrounding ocular tissues.
This method represents an advancement over prior iris suturing techniques, providing a reliable option for anterior segment reconstruction.