一个新的折射扩展焦点深度眼内透镜的光学和临床模拟性能
Aixa Alarcon1, Antonio Del Aguila Carrasco2, Franck Gounou2
1Johnson and Johnson Vision Van Swietenlaan 5, Groningen, 9728 NX, The Netherlands. aalarco4@its.jnj.com.
Eye (London, England)
|April 5, 2024
概括
这项研究表明,新的折射式扩展焦点深度 (EDF) 内眼镜 (IOL) 提供了与衍射式EDF IOL相似的视觉范围. 它还提供了更好的折射误差耐受性和可与单焦内膜眼镜相比较的异光形状.
科学领域:
- 眼科医生 眼科 眼科
- 光学工程是指光学工程.
- 生物医学工程 生物医学工程
背景情况:
- 白内障手术通常涉及眼内透镜 (IOL) 植入.
- 扩展焦点深度 (EDF) IOLs的目的是与传统的单焦 IOLs相比,提供更广泛的视野范围.
- 管理视力障碍 (视力障碍) 对患者对EDF内膜眼镜的满意度至关重要.
研究的目的:
- 评估TECNIS PureSeeTM折射式扩展焦点深度 (EDF) 内眼镜 (IOL) 的光学和临床性能.
- 为了评估新的折射性EDF IOL的异光形状.
- 为了比较折射性EDF IOL与同一平台的衍射性EDF IOL.
主要方法:
- 在平均和模拟眼睛模型中,使用调制转移函数 (MTF) 计算模拟视力敏度 (sVA).
- 通过计算机模拟未经校正的距离sVA来评估失焦耐受性.
- 用光环图像和模拟图像在现实的眼睛模型中评估失光症.
主要成果:
- 与衍射EDF IOL相比,折射EDF IOL显示出类似的视觉范围和距离,中间和接近sVA.
- 与衍射EDF IOL相比,折射性EDF IOL显示了相当的超视失焦耐受性和优异的近视失焦耐受性.
- 模拟表明,折射性EDF IOL具有与单焦ILS相比较的异光形状,并且优于衍射性EDF IOL.
结论:
- 新的折射EDF IOL预计将提供与其衍射对应器相似的视觉范围.
- 这种折射性EDF IOL为折射误差提供了增强的耐受性.
- 折射性EDF IOL呈现出有利的失光形状,与单焦IOL相美,即使有剩余的折射误差.
更多相关视频
06:55Scanning Light Scattering Profiler SLPS Based Methodology to Quantitatively Evaluate Forward and Backward Light Scattering from Intraocular Lenses
Published on: June 6, 2017
7.6K
07:12Spatio-Temporal In Vivo Imaging of Ocular Drug Delivery Systems using Fiberoptic Confocal Laser Microendoscopy
Published on: September 27, 2021
2.3K
相关概念视频
01:16Focusing of Light in the Eye
2.7K
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...
2.7K
01:18Imaging Biological Samples with Optical Microscopy
4.7K
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...
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...
4.7K