一种新型亲水性丙烯酸酯环曲面人工晶状体的囊袋内稳定性。
完整摘要 · 中文译文
目的：评估RayOne EMV散光型人工晶状体（TIOL）（Rayner Intraocular Lenses Ltd）在6个月随访期内的倾斜、偏心及轴向稳定性。 方法：这是一项在奥地利维也纳医科大学眼科与视光学系开展的单中心、前瞻性、干预性临床试验。共对79例年龄相关性白内障患者的119只眼植入了RayOne EMV TIOL。术前、术后1小时、1周及6个月时，使用眼前节光学相干断层扫描（Casia 2；Tomey Corporation）测量倾斜、偏心及前房深度（AQD）。采用向量分析评估倾斜和偏心的个体变化。 结果：晶状体的平均绝对倾斜和偏心值分别为5.30 ± 1.38°和0.14 ± 0.10 mm，TIOL在术后1小时为5.28 ± 1.27°和0.21 ± 0.11 mm，1周时为5.22 ± 1.25°和0.20 ± 0.10 mm，6个月时为5.33° ± 1.81°（范围：0.90至11.10°）和0.22 ± 0.11 mm（范围：0.04至0.57 mm）。从术前至6个月，倾斜和偏心的平均变化分别为1.59 ± 1.66°（范围：0.09至8.43°）和0.17 ± 0.09 mm（范围：0.02至0.47 mm）。7枚TIOL在6个月内显示倾斜变化超过5°。在1周至6个月之间观察到0.13 ± 0.14 mm（范围：-0.06至0.69 mm）的后向轴向移位，并与前部纤维化严重程度相关（P < .001）。 结论：尽管平均绝对倾斜和偏心值较低，但在某些病例中出现了明显的倾斜和后向轴性远视漂移。过度前部纤 纤维化的发展是这些变化的原因。
完整摘要 · 英文原文
PURPOSE: To assess tilt, decentration, and axial stability of the RayOne EMV toric intraocular lens (TIOL) (Rayner Intraocular Lenses Ltd) over a 6-month follow-up period. METHODS: This was a single-center, prospective, interventional clinical trial at the Department of Ophthalmology and Optometry, Medical University of Vienna, Vienna, Austria. A total of 119 eyes from 79 patients with age-related cataract were implanted with a RayOne EMV TIOL. Tilt, decentration, and aqueous depth (AQD) were measured using anterior segment optical coherence tomography (Casia 2; Tomey Corporation) preoperatively, at 1 hour, 1 week, and 6 months postoperatively. Individual changes in tilt and decentration were evaluated using vector analysis. RESULTS: Mean absolute tilt and decentration values were 5.30 ± 1.38° and 0.14 ± 0.10 mm for the crystalline lens, 5.28 ± 1.27° and 0.21 ± 0.11 mm for the TIOL at 1 hour, 5.22 ± 1.25° and 0.20 ± 0.10 mm at 1 week, 5.33° ± 1.81° (range: 0.90 to 11.10°) and 0.22 ± 0.11 mm (range: 0.04 to 0.57 mm) at 6 months. Mean changes in tilt and decentration from preoperatively to 6 months were 1.59 ± 1.66° (range: 0.09 to 8.43°) and 0.17 ± 0.09 mm (range: 0.02 to 0.47 mm). Seven TIOLs showed a tilt change over 5° within 6 months. A posterior axial shift of 0.13 ± 0.14 mm (range: -0.06 to 0.69 mm) was observed between 1 week and 6 months and correlated with anterior fibrosis severity (P < .001). CONCLUSIONS: Although mean absolute tilt and decentration values were low, in some cases, a pronounced tilt and posterior axial hyperopic shift occurred. Excessive anterior fibrosis development was responsible for these changes.