单眼闭塞的最佳持续时间,以消除间歇性外极性质中融合效应的最佳持续时间
Apatsa Lekskul1, Wadakarn Wuthisiri1, Kavin Vanikieti1
1Department of Ophthalmology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
Clinical ophthalmology (Auckland, N.Z.)
|January 16, 2024
概括
30分钟的单眼闭塞足以在间歇性外极变患者中达到最大偏差角度. 这种持续时间有效地消除了融合,优化了治疗规划的偏差测量.
科学领域:
- 眼科医生 眼科 眼科
- 眼的管理 管理 管理
- 双眼视觉 双眼视觉 双眼视觉 双眼视觉 双眼视觉
背景情况:
- 间歇性外otropia 是一种常见的眼的形式,其特点是眼睛向外转向.
- 单眼闭塞是一种用于消除融合和评估偏差大小的诊断工具.
- 确定阻塞的最佳持续时间对于准确的临床评估至关重要.
研究的目的:
- 为了确定被诊断为间歇性外观的患者单眼闭塞的理想持续时间.
- 评估不同封闭时间 (30,60,90分钟) 对偏差角度的影响.
主要方法:
- 一项前性队列研究,涉及40名间歇性外热症患者.
- 测量偏差角度在距离 (6m) 和近 (0.33m) 固定之前和之后的距离 (30,60和90分钟的单眼闭塞).
- 由一位眼科医生进行的标准化测量.
主要成果:
- 平均预封闭偏差为27.8 ± 15.1 PD (距离) 和26 ± 13.7 PD (接近).
- 在封闭后,所有时间点的偏差角度都显著增加 (P < 0.01).
- 在60分钟到30分钟之间,或在90分钟到60分钟之间,对于距离或近距离固定,没有发现偏差角度的统计学上显著差异.
结论:
- 30分钟的单眼闭塞足以实现间歇性外极变的最大偏差.
- 这种持续时间有效地消除了融合效应,为临床决策提供了可靠的测量.
相关概念视频
01:28Angle Closure Glaucoma: Treatment
500
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...
500
01:17Accessory Structures of the Eye
1.6K
Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...
1.6K
01:16Focusing of Light in the Eye
2.8K
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...
2.8K