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Updated: Jan 5, 2026

Iris Fixation via External Pentagram Suturing
Published on: May 5, 2022
Four-Flanged Intrascleral Intraocular Lens Fixation Technique: No Flaps, No Knots, No Glue
Sergio Canabrava1, Ana Carolina Canêdo Domingos Lima1, Guilherme Ribeiro2
1Cataract Department, Santa Casa of Belo Horizonte, Minas Gerais, Brazil; and.
Purpose:
To develop a novel, sutureless, single-piece, nonfoldable intraocular lens (IOL) intrascleral fixation technique based on the existing Malbran IOL scleral fixation and Yamane double-needle techniques.
Methods:
The novel method uses a 5.0 polypropylene suture and a bipolar cautery to create 2 flanges in the eyelets of the IOL and 2 flanges outside to insert inside the scleral tunnel and thus fixate the IOL.
Results:
This technique had been applied in 4 patients with aphakia after phacoemulsification complications. The mean preoperative and postoperative corrected distance visual acuities were 0.45 ± 0.17 and 0.67 ± 0.27 (Snellen decimal units), respectively.
Conclusions:
The 4-flanged technique improves and simplifies the existing single-piece, nonfoldable IOL intrascleral fixation techniques.
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