眼睛生物识别参数对IOL功率计算精度在短轴长和正常轴长眼睛的影响
Yuye Zhang1,2,3, Shiyu Tang1,2,3, Zihan Xie4,5,6
1Department of Ophthalmology, Shanghai Tenth People's Hospital, Tongji University, Shanghai, China.
Ophthalmology and therapy
|March 8, 2026
概括
在眼内透镜 (IOL) 配方中包括透镜厚度可以提高折射预测的准确性,特别是在正常轴长 (AL) 眼睛中. 轴长和白至白的距离是影响结果的关键生物识别因素.
科学领域:
- 眼科医生 眼科 眼科
- 生物医学工程 生物医学工程
- 眼镜测量是指眼睛的测量.
背景情况:
- 现代的眼内透镜 (IOL) 配方旨在获得精确的折射结果.
- 准确的IOL功率计算对于视觉康复至关重要.
- 了解不同轴长 (AL) 的生物识别影响是必不可少的.
研究的目的:
- 为了评估将镜片厚度 (LT) 纳入 IOL 公式的影响.
- 评估眼部生物识别参数如何影响IOL功率计算精度.
- 为了分析这些影响,特别是在短和正常的AL眼睛.
主要方法:
- 174只眼睛的回顾性队列研究 (74个短AL,100个正常AL).
- 使用IOLMaster 700进行手术前生物识别.
- 具有和没有LT的IOL公式 (SRK/T,Haigis,BUII,Kane,EVO) 的比较,分析预测错误.
主要成果:
- 短眼显示出更大的生物识别变异性 (较浅的ACD,较小的WTW,更厚的LT,更高的Km,CA).
- 在两组中,LT的加入减少了近视预测误差,但仅在正常眼睛中改善了平均绝对误差 (MAE).
- 轴长 (AL) 和白至白 (WTW) 距离是预测错误的显著预测因素,AL在短眼中占主导地位,而WTW在正常眼中占主导地位.
结论:
- 结合镜片厚度可以提高IOL公式的准确性,特别是对于正常的AL眼睛.
- 轴长和白至白的距离是影响折射预测的关键生物识别因素.
- 短眼的生物识别变异性需要在IOL功率计算中仔细考虑.
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