使用有限元分析评估具有不同触觉设计的托里克眼内透镜的旋转稳定性
Yifei Zheng1, Yequn Chen2, Xuejun Gu2
1Key Laboratory for Optoelectronic Information Perception and Instrumentation of Jiangxi Province, Nanchang Hangkong University, Nanchang, 330063, China.
Experimental eye research
|January 8, 2026
概括
眼内透镜 (IOL) 的触觉设计显著影响其在囊袋内的旋转稳定性. 模型C表现出卓越的旋转稳定性,为改进的IOL设计提供了洞察力.
科学领域:
- 眼科医生 眼科 眼科
- 生物医学工程 生物医学工程
- 材料科学 材料科学 材料科学
背景情况:
- 眼内透镜 (IOL) 的术后旋转稳定性对于最佳的视觉结果至关重要.
- 目前的IOL设计具有不同的触觉特征,在囊袋中呈现出不同的生物机械行为.
研究的目的:
- 评估和比较四个具有明显触觉设计的Toric眼内透镜 (TIOL) 的旋转稳定性.
- 提供数据驱动的见解,以提高TIOLs的手术后旋转稳定性.
主要方法:
- 基于真实测量和在体外评估它们的旋转稳定性的四个TIOL模型的重建.
- 对TIOL进行模拟压缩测试,以评估其在10毫米直径的生物力学稳定性.
- 在不同直径 (10.75毫米) 的囊袋中对旋转和应力的植入后分析.
主要成果:
- 在TIOL模型中观察到压力和轴位移的显著差异.
- 模型D在10.5毫米压缩时呈现凸变形,导致参数变化.
- 在10.75毫米的囊袋中,TIOL的旋转角度从4.97°到17.23°不等;C型显示3.06°到9.93°.
- 模型C在光触觉结处经历了较高的应力,而模型A和D显示了较低的应力;模型A具有最低的赤道应力.
结论:
- TIOL的旋转稳定性受到触觉设计的显著影响,模型之间存在明显的生物力学差异.
- 与其他测试模型相比,C型号表现出优越的旋转稳定性.
- 结果为优化TIOL设计提供了宝贵的见解,以改善术后旋转稳定性.
相关概念视频
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