The following is a summary of “Four-flanged polypropylene optic piercing technique for scleral fixation of multifocal intraocular lens,” published in the September 2023 issue of Ophthalmology by Eom et al.

Researchers performed a retrospective study to evaluate whether a new optic piercing technique with a 6 − 0 polypropylene monofilament could create flanges to facilitate scleral fixation of dislocated one-piece diffractive multifocal intraocular lenses (IOLs).

They penetrated two separate 6 − 0 polypropylenes twice at the opposite peripheral optic of the TECNIS Synergy IOL (Johnson & Johnson Vision). The modulation transfer function MTF _RMS, measured between + 1.00 and − 4.00 D of defocus, was recorded in the TECNIS Synergy IOL with and without optic piercing during the optical bench study. Two patients had scleral fixation of multifocal IOLs using the four-flanged polypropylene optic piercing technique. Postoperative corrected distance visual acuity (CDVA) was evaluated at 4 m, the uncorrected near visual acuity (UNVA) at 40 cm, and IOL centration.

The results showed no differences in the MTF _RMS values measured in the TECNIS Synergy IOL, whether with or without optic piercing, at all defocus levels. In all three case series, the postoperative CDVA at 4 m was 20/20, and the UNVA at 40 cm was J1. Postoperative photos showed satisfactory IOL centration.

They concluded that the four-flanged polypropylene optic piercing technique for multifocal IOL scleral fixation is safe and effective.

Source: bmcophthalmol.biomedcentral.com/articles/10.1186/s12886-023-03133-7