相关实验视频
Updated: Jul 16, 2025
07:06
Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients
Published on: March 29, 2022
2.6K
用不同的TORIC隐形眼镜设计来设计光学质量和视觉性能
Shizuka Koh1, Naoyuki Maeda, Misaki Terao
1Department of Innovative Visual Science (S.K.), Osaka University Graduate School of Medicine, Osaka, Japan; Department of Ophthalmology (S.K., N.M., K.N.), Osaka University Graduate School of Medicine, Osaka, Japan; and Kozaki Eye Clinic (N.M., M.T., H.M., R.K., J.K.), Osaka, Japan.
Eye & contact lens
|September 15, 2023
概括
托里克隐形眼镜 (CL) 与球形隐形眼镜相比,可以改善远距离视力. 镜头的设计影响视觉质量,特定的托里克设计减少了偏差和主观视觉障碍.
科学领域:
- 眼科医生 眼科 眼科
- 视光学测量 视光学测量 视光学测量
- 视觉科学科学 视觉科学
背景情况:
- 托里克隐形眼镜 (CLs) 旨在纠正常见的折射误差 - - 斜视症.
- 评估不同托里克CL设计的光学性能对于优化视觉校正至关重要.
- 水凝每日一次性CL被广泛使用,因为它们的舒适性和氧气透性.
研究的目的:
- 为了比较两个不同toric软隐形眼镜设计的眼睛内光学质量和视觉性能.
- 评估托里克CL设计对纠正距离视敏度 (CDVA),眼症和眼睛高阶偏差 (HOA) 的影响.
- 评估主观视觉质量,包括模糊和双重视力,以及镜头配合特征.
主要方法:
- 20名软CL佩戴者 (年龄在20-39岁) 被纳入该研究.
- 测试了两种每日一次性-水凝托里克CL (眼稳定设计[ESD-CL]和镜压力设计[PB-CL]) 和一个球形CL对照.
- 在眼睛上的表现被评估使用CDVA,波浪前感应纹和HOA,以及主观视觉质量评级.
主要成果:
- 形CL设计 (ESD-CL和PB-CL) 和没有CL的设计都提供了比球形CL更好的CDVA.
- 与球形CL和没有CL相比,PB-CL和ESD-CL导致的诱导性形明显较少.
- 与PB-CL相比,ESD-CL的诱发性昏迷显著减少,而总的HOA在条件之间没有显著差异. 对模糊和双重视力的主观评分与ESD-CLs相比更好.
结论:
- 与球形隐形眼镜相比,托里克隐形眼镜通常提供更高的纠正距离视力敏度.
- 托里克隐形眼镜的特定设计可以影响眼睛偏差的纠正,特别是昏迷,并影响主观视觉体验.
相关概念视频
01:16Focusing of Light in the Eye
2.9K
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...
2.9K
01:18Imaging Biological Samples with Optical Microscopy
4.8K
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...
4.8K
02:24Properties of Enantiomers and Optical Activity
17.2K
It is essential to understand the difference between chiral and achiral interactions and the implications thereof in optical activity and their applications. Just as our feet, which are chiral, interact uniquely with chiral objects, such as a pair of shoes, but identically with achiral socks, enantiomers of a molecule exhibit different properties only when they interact with other chiral media. An example of a significant implication from this facet is the phenomenon known as optical activity,...
17.2K
01:28Angle Closure Glaucoma: Treatment
559
Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
559