Related Experiment Video
Updated: Jul 15, 2025
Iris Fixation via External Pentagram Suturing
Published on: May 5, 2022
Four-flanged polypropylene optic piercing technique for scleral fixation of multifocal intraocular lens
Youngsub Eom1,2,3, Eunheh Koh4, Seul Ki Yang5,6
1Department of Ophthalmology, Korea University Ansan Hospital, Gyeonggi-do, Republic of Korea. hippotate@hanmail.net.
Background:
To evaluate the feasibility of creating flanges using an optic piercing technique with a 6 - 0 polypropylene monofilament for scleral fixation of dislocated one-piece diffractive multifocal intraocular lenses (IOLs).
Study Design:
Experimental study and case series.
Subjects:
Optical bench test and eyes with IOL dislocation.
Methods:
Two separate 6 - 0 polypropylenes were penetrated twice at the opposite peripheral optic of the TECNIS Synergy IOL (Johnson & Johnson Vision). The root mean square of the modulation transfer function (MTFRMS), at between + 1.00 and - 4.00 D of defocus, was measured in the TECNIS Synergy IOL both with and without optic piercing in the optical bench study. This case series included three eyes from two patients who underwent scleral-fixation of multifocal IOLs using the four-flanged polypropylene optic piercing technique. The postoperative corrected distance visual acuity (CDVA) at 4 m, the uncorrected near visual acuity (UNVA) at 40 cm, and IOL centration were evaluated.
Results:
The optical bench test showed no differences in MTFRMS values measured in the TECNIS Synergy IOL, either with or without optic piercing at all defocuses. In all three case series, the postoperative CDVA at 4 m was 20/20 and UNVA at 40 cm was J1. Postoperative anterior segment photographs showed good centration of IOLs in all cases.
Conclusion:
The four-flanged polypropylene optic piercing technique for multifocal IOL scleral fixation can provide excellent clinical outcomes and IOL stability after surgery without diminishing the performance of the multifocal IOLs.
