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Updated: Jun 21, 2026

Iris Fixation via External Pentagram Suturing
05:22

Iris Fixation via External Pentagram Suturing

Published on: May 5, 2022

L-Suture Technique for Transscleral Intraocular Lens Fixation.

Subinuer Alimu1,2, Nan Luo1, Liyi Zhao1,3

  • 1State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China.

Retina (Philadelphia, Pa.)
|June 19, 2026
PubMed
Summary

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This summary is machine-generated.

The modified L-suture technique for transscleral intraocular lens (IOL) fixation offers robust support and improved visual acuity. This method demonstrates superior tensile strength compared to the Z-suture technique, with minimal complications.

Area of Science:

  • Ophthalmology
  • Surgical Techniques

Background:

  • Transscleral intraocular lens (IOL) fixation is crucial for managing aphakia and lens luxation.
  • Existing suture techniques have limitations in terms of strength and invasiveness.

Purpose of the Study:

  • To evaluate the clinical outcomes of a modified L-suture technique for transscleral IOL fixation.
  • To compare the tensile strength of the L-suture technique with the Z-suture technique in vitro.

Main Methods:

  • A case series of 35 eyes undergoing transscleral IOL fixation with the L-suture technique.
  • Assessment of best-corrected visual acuity (BCVA), corneal endothelial cell density (ECD), and IOL tilt.
  • In vitro evaluation of maximum tensile strength compared to the Z-suture technique.
Keywords:
intraocular lens dislocationintraocular lens transscleral fixationminimally invasive proceduresurgical technique

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Main Results:

  • Significant improvement in mean BCVA from 0.25 to 0.09 logMAR (P=0.001).
  • L-suture fixation demonstrated higher tensile strength than Z-suture fixation (P<0.01).
  • Low rates of intraoperative and postoperative complications, including subconjunctival hemorrhage and IOL iris capture.

Conclusions:

  • The L-suture technique provides stable IOL positioning and robust fixation.
  • This modified technique is minimally invasive and yields satisfactory clinical outcomes.