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细分扩展焦点深度眼内透镜的光学性能在受折射手术产生的不同值球形偏差的影响下

Luís Salvá¹, Scott García¹, Salvador García-Delpech²

¹Oftalmedic Salvà, 07013 Palma de Mallorca, Spain.

Journal of clinical medicine

|July 29, 2023

概括

之前的折射手术造成的球形偏差 (SA) 影响多焦内眼镜 (MIOL) 的性能. 负SA增强双焦,而正SA则转移焦点,影响不同距离的视力敏度.

科学领域:

眼科医生眼科眼科
光学工程是指光学工程.
视觉科学科学视觉科学

背景情况:

角膜折射手术会诱导球形偏差 (SA),这是一个高阶偏差.
在白内障手术后,SA可能会使需要多焦点眼内透镜 (MIOL) 的患者的结果复杂化.
非对称MIOL设计在预测先前SA的眼睛中的视觉性能方面存在挑战.

研究的目的:

为了评估不同球形偏差 (SA) 水平对FEMTIS Comfort眼内透镜 (IOL) 的光学性能的影响.
了解如何从折射手术中预先存在的SA影响MIOL功能.

主要方法:

使用透焦调制转移函数 (TF-MTF) 曲线评估光学性能.
高对比度滚动的E图像评估了视力敏度.
使用自适应光学视觉模拟器进行的测量.

主要成果:

负SA值增加了MIOL的双焦,减少了其扩展的焦点深度.
积极的SA值将TF-MTF曲线转移到积极的vergences.
阳性SA在+0.50到+1.00 D范围内改善视力,但远视力恶化 (+1.00到+2.00 D).

结论:

对于考虑不对称MIOL植入的患者来说,SA的手术前评估至关重要.
了解SA的影响有助于预测视觉结果,并根据患者需求量身定制IOL选择.

关键词:

适应光学视觉模拟器的视觉模拟器白内障是白内障,白内障是白内障多焦点内膜眼镜 (IOL) 的使用.折射手术是一种折射手术.球形偏差是指球形偏差.

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