斑点触角眼内眼镜去中心化的影响在术后视觉质量
Chunli Diao1, Qianqian Lan1, Jing Liao1
1Department of Ophthalmology, Key Laboratory of Eye Health & Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology &Institute of Ophthalmic Diseases, the People's Hospital of Guangxi Zhuang Autonomous Region & Guangxi, Guangxi Academy of Medical Sciences, Guangxi Zhuang Autonomous Region, Guangxi, China.
BMC ophthalmology
|July 20, 2023
概括
在0.3毫米以上的平板-触角托里克眼内镜片 (IOL) 分离会通过增加异常而对视觉质量产生负面影响. 眼镜比单焦眼镜更容易受到分散效应的影响,特别是有较大的瞳孔直径的眼镜.
科学领域:
- 眼科医生 眼科 眼科
- 光学是什么?光学是什么?光学是什么?
- 生物医学工程 生物医学工程
背景情况:
- 评估眼内镜片 (IOL) 分离对视觉结果的影响对于折射手术至关重要.
- 板状触觉眼镜的设计是为了纠正眼,但它们的光学性能可能会受到放置准确性的影响.
研究的目的:
- 评价如何分散的板状触觉门IOLs影响术后视觉质量.
- 为了比较 toric 和 monofocal IOL 之间分散对视觉质量的影响.
主要方法:
- 一项涉及78名患者 (78只眼睛) 的研究,植入了托里克 (A组) 或单焦 (B组) IOL.
- 患者根据脱中心分类:<0.3毫米 (A1,B1) 和>0.3毫米 (A2,B2).
- 视力敏度,光学质量指标 (MTF切线,OSI,SR) 和患者满意度在术后3个月被评估.
主要成果:
- 两组之间没有发现未纠正/最佳纠正视觉敏度或整体患者满意度的显著差异.
- 高阶异常 (tHOA),球形异常和二次纹症在>0.3毫米分散的眼睛显著增加 (A2组与B2组和A2组与A1组).
- 与类似分散水平的单焦IOL (B2组) 相比,托里克IOL (A2组) 的偏差增加更大.
结论:
- 超过0.3毫米的平板触角眼镜的离心率会对视觉质量产生负面影响,主要是通过增加总高阶偏差,球形偏差,昏迷和二次眼.
- 分心对视觉质量的负面影响在较大的瞳孔直径下更为明显.
- 托里克眼镜对分散引起的视觉偏差比单焦眼镜更敏感.
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
01:28Angle Closure Glaucoma: Treatment
572
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...
572
01:27Open Angle Glaucoma: Treatment
481
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...
481