相关实验视频

Updated: Jul 5, 2026

Development of an In Vitro Ocular Platform to Test Contact Lenses

Development of an In Vitro Ocular Platform to Test Contact Lenses

Published on: April 6, 2016

基于点传播功能的多焦眼内镜的体外评估:光学性能和光环形成

Anabel Martínez-Espert¹, Salvador García-Delpech², Walter D Furlan¹

¹Departamento de Óptica, Optometría y CC de la Visión, Universitat de València, 46100 Burjassot, Spain.

Journal of clinical medicine

|December 11, 2025

概括

这项研究比较了多焦眼内透镜 (MIOLs),发现扩展焦点深度 (EDoF) 设计比三焦选择产生更少的光环. 光学性能因镜头,瞳孔大小和光照条件而异.

科学领域:

眼科医生眼科眼科
光学工程是指光学工程.
生物医学光学生物医学光学

背景情况:

三焦和扩展焦点深度 (EDoF) 多焦眼内透镜 (MIOL) 对于白内障手术后视力恢复至关重要.
对MIOLs的体外评估对于外科医生来说至关重要,以便为患者选择最佳的透镜.
了解镜头的光学行为有助于改善手术结果和眼镜独立性.

研究的目的:

量化评估和比较领先的三焦和EDoFMIOL的光学性能.
评估所选眼内透镜的光环形成和色谱偏差特征.
在临床实践中为知情的MIOL选择提供基于证据的数据.

主要方法:

四个MIOL (FineVision POD F,Acriva Trinova Pro C,AT LARA 829MP,AcrySof IQ Vivity) 在一个光学基板上进行了测试.
透焦调制转移函数 (TF-MTF) 和MTF下的面积 (MTFa) 从点差函数 (PSF) 中计算出来.
对光环形成进行了定性分析,并在不同瞳孔大小和波长下评估了性能.

主要成果:

FineVision POD F和Acriva Trinova Pro C展示了三焦行为,性能取决于瞳孔大小和波长.
AT LARA 829MP在单色光中显示双焦特征,但在多色光中显示EDoF.
在经过测试的镜头中,AcrySof IQ Vivity表现出EDoF配置和最少的光环形成.

结论:

三焦与EDoF眼内透镜的光学和色彩性能存在显著差异.
与三焦设计相比,EDoF镜头通常会产生较少的光环.
这些发现支持个性化的MIOL选择,以增强视觉结果和眼镜独立性.

关键词:

染色异常的染色异常 ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,多焦点眼内透镜是多焦点眼内透镜.一个光学板.

更多相关视频

Scanning Light Scattering Profiler SLPS Based Methodology to Quantitatively Evaluate Forward and Backward Light Scattering from Intraocular Lenses

Scanning Light Scattering Profiler SLPS Based Methodology to Quantitatively Evaluate Forward and Backward Light Scattering from Intraocular Lenses

Published on: June 6, 2017

Measuring the Behavioral Effects of Intraocular Scatter

Measuring the Behavioral Effects of Intraocular Scatter

Published on: February 18, 2021

相关概念视频

Imaging Biological Samples with Optical Microscopy

Imaging Biological Samples with Optical Microscopy

Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...

Focusing of Light in the Eye

Focusing of Light in the Eye

Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...