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Updated: Mar 25, 2026

Iris Fixation via External Pentagram Suturing
Published on: May 5, 2022
Sutureless intrascleral intraocular lens fixation with lamellar dissection of scleral tunnel
Takahiro Kawaji1, Tomoki Sato2, Hidenobu Tanihara3
1Department of Ophthalmology, Faculty of Life Sciences, Kumamoto University, Chuo-ku, Japan; Sato Eye & Internal Medicine Clinic, Kumamoto, Japan.
Purpose:
To report the results of sutureless scleral fixation of a posterior chamber intraocular lens (IOL) by using our developed simple technique.
Methods:
We retrospectively reviewed the medical records of 48 eyes of 47 patients who underwent sutureless intrascleral IOL fixation by using our modified technique. A 25-gauge microvitreoretinal knife was used to perform sclerotomies and create limbus-parallel scleral tunnels with lamellar dissection in which the haptics were fixed.
Results:
The IOLs were fixed and centered well. The mean follow-up period was 26.7 months. Postoperative complications included smooth vitreous hemorrhage in four eyes (8.3%), cystoid macular edema in two eyes (4.2%), and iris capture of the IOL in two eyes (4.2%). No other complications, such as breakage of the IOL, spontaneous IOL dislocation, or retinal detachment, were detected during the follow-up period.
Conclusion:
The lamellar dissection of the limbus-parallel scleral tunnel can simplify the forceps-assisted introduction of the haptics into the scleral tunnel, and this technique seemed to be safe.

