新的光学设计和临床分类的波纹形状的近视障碍纠正眼内透镜的眼内透镜
Thomas Kohnen1, John P Berdahl2, Xin Hong3
1Department of Ophthalmology, Goethe University Frankfurt, Frankfurt am Main, Germany.
Clinical ophthalmology (Auckland, N.Z.)
|August 24, 2023
概括
波形眼内透镜 (IOL) 提供连续的视野范围和最小的视觉干扰,优于传统的EDoF IOL. 这项技术提供了清晰的距离和功能性近视,与单焦IOL相美.
科学领域:
- 眼科医生 眼科 眼科
- 光学工程是指光学工程.
- 生物医疗设备 生物医疗设备
背景情况:
- 扩展焦点深度 (EDoF) 眼内透镜 (IOL) 旨在减少长视患者对眼镜的依赖.
- 目前的EDoF IOL使用各种光学设计,包括衍射,小光圈和球形偏差,每个都有潜在的视觉障碍或远距离视力降低.
- 波面塑造技术提出了一种新的光学原理,可以克服现有的长视障碍纠正IOLs的局限性.
研究的目的:
- 评估IOLs中波纹成形技术的临床理由.
- 从折射式和衍射式视障纠正设计中区分波纹形状的IOL.
- 描述波浪前线塑造技术的作用方式.
主要方法:
- 对波形状的内膜眼镜的临床数据的审查.
- 视觉性能和视觉障碍与单焦和其他EDoF IOLs的比较.
- 对光学原理的分析,区分波面成型与衍射和折射设计.
主要成果:
- 波面成型技术提供了连续的EDoF,与单焦IOL不同.
- 与波形状的内膜眼镜相关的视觉障碍是最小的,与无球单焦内膜眼镜相提并论.
- 临床数据显示,性能超过了EDoF IOL标准.
结论:
- 波面成型光学技术使远距离的连续视觉从远距离到功能性近距离视觉成为可能.
- 这项技术提供了低水平的视觉干扰,类似于无球单焦内射眼镜.
- 它代表了长视障碍纠正IOLs的重大进步.
更多相关视频
04:59Author Spotlight: Enhancing Visual Outcomes in Cataract Surgery: A Novel Technique to Prevent Posterior Capsular Opacification Through IOL Rotation
Published on: July 7, 2023
2.4K
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
相关概念视频
Focusing 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
Angle Closure Glaucoma: Treatment
560
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...
560
Open Angle Glaucoma: Treatment
477
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Drugs such as carbonic anhydrase inhibitors, α2- and...
477
