通过四个不同的断层扫描仪测量后面角膜曲率的比较
Arianna Grendele1, Alice Galzignato1, Kenneth J Hoffer2,3
1From Studio Oculistico d'Azeglio, Bologna, Italy.
Journal of refractive surgery (Thorofare, N.J. : 1995)
|December 10, 2025
概括
四个测量后部角质量计 (PK) 的设备显示读数有显著差异. IOLMaster 700产生了最平坦的PK,表明测量不能用于眼内透镜功率计算.
科学领域:
- 眼科医生 眼科 眼科
- 生物医学光学 生物医学光学
- 角膜生理学 角膜生理学
背景情况:
- 在白内障手术中,准确的角质测量对于眼内透镜 (IOL) 功率计算至关重要.
- 后角膜测量 (PK) 对折射结果越来越重要.
- 设备之间的PK测量的变化可能会影响手术规划.
研究的目的:
- 为了比较从四种不同的眼科仪器获得的后部角质量计 (PK) 值.
- 为了评估平均角膜测量 (Kave),角膜总功率 (TCP),前后比 (A/P比) 和后角膜纹 (PCA) 的差异.
主要方法:
- 对100名连续接受白内障手术的患者的眼睛进行前性研究.
- 来自三个基于光学连贯断层扫描的设备 (Anterion,IOLMaster 700,MS-39) 和一个Scheimpflug摄像机 (Pentacam AXL Wave) 的测量结果的比较.
- 使用重复测量ANOVA或弗里德曼测试来比较设备输出的统计分析.
主要成果:
- 在PK,Kave,A/P比率和TCP (P < .0001) 的四种仪器中都发现了统计学上显著的差异.
- 与其他设备相比,IOLMaster 700显示了最平坦的PK和最低的A/P比率.
- 在后角膜纹症 (PCA) 测量中也观察到显著差异.
结论:
- 从评估的仪器获得的后部角质量计值是不可互换的.
- IOLMaster 700显示了最明显的测量,产生了最平坦的后角膜和最低的A/P比.
- 临床医生在IOL功率计算中使用不同设备的PK值时应谨慎使用.
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