Department of Ophthalmology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki, Kanagawa, Japan.
BMC Ophthalmol. 2021 Jan 6;21(1):8. doi: 10.1186/s12886-020-01758-6.
However there have been numerous investigations of intrascleral intraocular lens (IOL) fixation techniques, there is room for improvement in terms of simplifying complicated techniques and reducing the high levels of skill required. This study aimed to report a novel technique for sutureless intrascleral fixation of the IOL using retinal forceps with a 27-gauge trocar.
Nineteen eyes of 18 patients underwent intrascleral fixation of the IOL from July 2018 to September 2019 were enrolled in this study. A 27-gauge trocar formed 3-mm scleral tunnels positioned at 4 and 10 o'clock, 2 mm from the corneal limbus. We used a 3-piece IOL haptic grasped by a 27-gauge retinal forceps and pulled from the 27-gauge trocar. The IOL was fixed by making a flange. Main outcome measures were visual acuity, corneal endothelial cell density, IOL tilt, decentration, predicted error of refraction and complications.
The 19 eyes were followed up for 1 month. The mean pre- and postoperative logMAR uncorrected visual acuity (UCVA) was 1.06 ± 0.63 and 0.40 ± 0.26, respectively (p < 0.01), while the mean pre- and postoperative logMAR best corrected visual acuity (BCVA) was 0.27 ± 0.51 and 0.06 ± 0.15, respectively (p = 0.09). The mean corneal endothelial cell density was 2406 ± 625 to 2004 ± 759 cells/mm at 1 month (p = 0.13). The mean IOL tilt was 3.52 ± 3.00°, and the mean IOL decentration was 0.39 ± 0.39 mm. There was no correlation among IOL tilt, decentration and BCVA (p > 0.05). The mean prediction error of the target refraction was - 0.03 ± 0.93 D. The complications were vitreous hemorrhage (3 eyes), hyphema (1 eye), IOP elevation (1 eye), iris capture of the IOL (1 eye) and hypotony (2 eyes). No IOL dislocation occurred.
IOL intrascleral fixation with a flange achieved good IOL fixation and visual outcome in the scleral tunnels created with the 27-gauge trocar.
尽管已经有许多关于巩膜内眼内晶状体(IOL)固定技术的研究,但在简化复杂技术和降低所需技能水平方面仍有改进的空间。本研究旨在报告一种使用 27 号视网膜夹和 27 号套管针在巩膜内无缝线固定 IOL 的新方法。
本研究纳入了 2018 年 7 月至 2019 年 9 月期间 18 例(19 只眼)接受巩膜内 IOL 固定的患者。在 4 点和 10 点位置距角膜缘 2mm 处,用 27 号套管针形成 3mm 的巩膜隧道。我们使用 27 号视网膜夹夹住 3 部分的 IOL 襻,并从 27 号套管针中拉出。通过制作凸缘来固定 IOL。主要观察指标包括视力、角膜内皮细胞密度、IOL 倾斜度、偏心度、预测屈光度误差和并发症。
19 只眼随访 1 个月。术前和术后平均 logMAR 未矫正视力(UCVA)分别为 1.06±0.63 和 0.40±0.26(p<0.01),而术前和术后平均 logMAR 最佳矫正视力(BCVA)分别为 0.27±0.51 和 0.06±0.15(p=0.09)。术后 1 个月平均角膜内皮细胞密度为 2406±625 个/mm 至 2004±759 个/mm(p=0.13)。IOL 倾斜度平均为 3.52±3.00°,IOL 偏心度平均为 0.39±0.39mm。IOL 倾斜度、偏心度与 BCVA 之间无相关性(p>0.05)。平均目标屈光度预测误差为-0.03±0.93 D。并发症包括玻璃体积血(3 只眼)、前房积血(1 只眼)、眼压升高(1 只眼)、IOL 虹膜捕获(1 只眼)和低眼压(2 只眼)。无 IOL 脱位发生。
使用 27 号套管针制作的巩膜隧道,通过凸缘固定 IOL 可获得良好的 IOL 固定和视力效果。