Research on the Z.S. technique for 8-0 polypropylene suture in scleral fixation of one-piece intraocular lens

Purpose: To introduce a new scleral flapless knotless interlaminar anchoring technique (which we called Z.S. scleral fixation technique) for 8 − 0 polypropylene suture in fixation of intraocular lens (IOL) and evaluate its efficacy and safety. SETTING: Department of Glaucoma, Fuzhou Eye Hospital, 350007, Fuzhou, China DESIGN: Retrospective case series. Methods All surgeries were performed according to two strategies. At first, the Z.S. scleral fixation technique for 8 − 0 polypropylene suture in fixation of one-piece IOL was used to fix suture to sclera. And then, the one-piece IOL previously implanted in the anterior chamber was relocated to the posterior chamber. Finally, the suture ends outside the sclera were also ironed into the shape of a ball and buried in the sclera. All effectiveness and safety data related to the Z.S. technique was recorded and compared. Results The Z.S. scleral fixation technique was employed in 16 eyes of 13 patients, with the follow-up duration of at least 6 months. Postoperative uncorrected distance visual acuity (UDVA) was greatly improved in most of the operated eyes (11/16). The mean log MAR UDVA after surgery was significantly improved compared with that before surgery (0.93 ± 0.72 vs 1.53 ± 0.73, P = 0.002). IOLs in the vast majority of operated eyes (15/16) remained stable during half-year follow-up. No severe intra-/post- operative complications were observed in any of the operated eyes. Conclusion The Z.S. scleral fixation technique for 8 − 0 polypropylene suture in fixation of one-piece IOL reduced the surgical injuries and had ideal surgical efficacy and safety.