Mito Tsuyoshi, Tsuruoka Haruka, Omura Sayaka, Chinen Motoki, Sasaki Hiroshi
Department of Ophthalmology, Kanazawa Medical University, Uchinada, JPN.
Cureus. 2025 Aug 7;17(8):e89566. doi: 10.7759/cureus.89566. eCollection 2025 Aug.
Intraocular repair for subluxation of a multifocal intraocular lens (MFIOL) can be challenging, especially in toric models. Herein, we report a case of a 43-year-old man with a subluxated toric-type single-piece trifocal intraocular lens (IOL) with a C-loop that was spared using suture repositioning. Pars plana suturing was performed using the haptic externalization technique, and the tram-track suture technique was employed to flatten the tilted toric MFIOL. We also evaluated the postoperative toric axis and IOL position using anterior segment optical coherence tomography (AS-OCT) and a wavefront aberration analyzer. Postoperative AS-OCT revealed a 0.51 mm decentration and 8.7° tilt. The wavefront analysis revealed that the toric axis alignment was <5° from the target axis. The postoperative refractive error and residual astigmatism were minimal; the visual acuity at different distances was acceptable.
多焦点人工晶状体（MFIOL）半脱位的眼内修复可能具有挑战性，尤其是在有散光矫正功能的人工晶状体模型中。在此，我们报告一例43岁男性患者，其有散光矫正功能的单一片式三焦点人工晶状体（IOL）半脱位，该人工晶状体带有C袢，通过缝线复位得以保留。采用袢外置技术进行了睫状体平坦部缝合，并采用电车轨道缝线技术使倾斜的有散光矫正功能的多焦点人工晶状体变平。我们还使用眼前节光学相干断层扫描（AS-OCT）和波前像差分析仪评估了术后散光轴和人工晶状体位置。术后AS-OCT显示偏心0.51 mm，倾斜8.7°。波前分析显示，散光轴与目标轴的对齐角度<5°。术后屈光不正和残余散光最小；不同距离的视力均可接受。
