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在不同类型的不规则角膜中出现角膜上级异常

Clara Martínez-Pérez¹, Jacinto Santodomingo-Rubido², Cesar Villa-Collar³

¹ISEC Lisboa-Instituto de Educação e Ciência de Lisboa, 1750-179 Lisboa, Portugal.

Journal of optometry

|September 24, 2024

概括

垂直昏迷是不规则角膜中主要的高阶偏差. 激光辅助的 in situ 角质化 (LASIK) 和角质 (KC) 显示出较低的偏差,而角质球体 (KG) 和透角质塑造 (PK) 的水平较高.

科学领域:

眼科医生眼科眼科
角膜异常测量角膜异常测量
视光学测量视光学测量视光学测量

背景情况:

不规则的角膜在视觉质量方面存在独特的挑战.
在这些条件下,高阶偏差 (HOA) 显著影响视觉功能.
了解HOA模式对于管理不规则的角膜至关重要.

研究的目的:

为了在六种类型的不规则角膜中比较角膜高阶异常 (HOA).
分析特定异常的差异,如垂直昏迷和球形异常.
根据瞳孔大小来评估HOA变化.

主要方法:

对角膜异常数据的回顾性分析 (第三和第四顺序).
垂直昏迷,水平昏迷和球形偏差的比较.
分析的数据跨越了角质 (KC),角质球 (KG),透明边缘变性 (PMD),LASIK,PK和ICRS组.
在3mm,5mm和7mm瞳孔直径时进行评估.

主要成果:

在不规则的角膜类型 (p≤0.025) 中发现了垂直昏迷,三叶草和球形偏差的显著差异.
在所有组和瞳孔大小中,垂直昏迷是最突出的HOA.
与ICRS和PK相比,LASIK和KC组的HOA较低,特别是在较大的瞳孔大小 (5和7毫米) 时.

结论:

垂直昏迷是不规则角膜中占主导地位的HOA.
角膜异常在LASIK和KC中通常较低.
在角质球 (KG) 和穿透角质塑性 (PK) 角膜中观察到更高的偏差.

关键词:

视角膜内侧环段的内侧环段.克拉托科努斯 (Keratoconus) 是一种类型的角质球.克拉托格洛布斯 (Keratoglobus) 是一种质球体.石膏塑料化术 (keratoplasty) 是一种切除石膏塑料的方法.激光手术 (LASIK) 是一种激光手术.皮质边缘退行症皮质边缘退行症

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