现代眼内透镜的相对行为 功率计算公式 跨越现实范围的生物识别值
Maxwell G Rossip1, Jordan Hastings1, Hendrik Burwinkel2
1Department of Ophthalmology, Penn State College of Medicine, Hershey, PA, USA.
Clinical ophthalmology (Auckland, N.Z.)
|July 4, 2025
概括
现代眼内透镜 (IOL) 功率计算公式显示,眼睛的折射结果与轴长在22.528.1毫米范围之外的眼睛的折射结果有显著差异. 配方选择影响了超过10%的患者的结果,特别是那些眼睛很短或很长的人.
科学领域:
- 眼科医生 眼科 眼科
- 生物医学工程 生物医学工程
- 光学是什么?光学是什么?光学是什么?
背景情况:
- 精确的眼内镜 (IOL) 功率计算对于在白内障手术后实现所需的折射结果至关重要.
- 现代IOL公式旨在通过结合各种生物识别参数来提高折射可预测性.
- 了解这些配方在不同眼睛维度上的性能变化对于临床实践至关重要.
研究的目的:
- 评估和比较当代IOL功率计算公式的性能.
- 在基于广泛的眼部生物识别参数的公式中识别折射预测的差异.
- 为了确定不同IOL公式在功率计算中分歧的轴长 (ALs).
主要方法:
- 模拟了关键生物识别参数 (角质量测量,前腔深度,透镜厚度,白至白) 和轴长度 (AL) 之间的关系.
- 创建了一个由170只眼睛组成的人工数据集,其生物识别分布具有解剖学上的现实性.
- 通过ESCRS IOL计算器计算出使用Barrett Universal II,Cooke K6,Kane,PEARL-DGS,HofferQST,EVO v2.0,Hill-RBF v3.0和Zeiss AI公式的凝聚力IOL功率.通过ESCRS IOL计算器计算出使用Barrett Universal II,Cooke K6,Kane,PEARL-DGS,HofferQST,EVO v2.0,Hill-RBF v3.0和Zeiss AI公式的凝聚力IOL功率.
主要成果:
- 配方显示,在22.5毫米至28.1毫米之间的ALs的吸收性IOL功率和球形等效预测中,差异不到0.25 D.
- 在这个AL范围之外,预测差异为0.25 D或更多.
- 在评估的配方中,对ALs<19.5mm的EMMETROPIC IOL功率的差异超过1.0D.
结论:
- 在PEARL-DGS公式中发现并纠正了执行错误.
- 配方选择显著影响ALs<22.5mm和>28.1mm的眼睛的折射结果.
- 这些异常AL可能占患者总数的10%以上,突显了配方选择的临床相关性.
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