相关实验视频
Updated: Jun 27, 2025

05:05
Ultrasound Cyclo Plasty in Eyes with Glaucoma
Published on: January 26, 2018
12.2K
在使用镜,SLT和激光虹膜切除镜片时的眼内压力:一个活体研究
Ticiana De Francesco1,2,3, Eric Mikula4,5, Wes Lummis4
1John Moran Eye Center, University of Utah, Salt Lake City, Utah, United States.
Investigative ophthalmology & visual science
|May 7, 2024
概括
标准的眼科手术透镜显著提高眼内压力 (IOP) 约20毫米升. 这项研究测量了镜检查,选择性激光膜整形 (SLT) 和激光 iridotomy 程序期间的 IOP 和力.
科学领域:
- 眼科医生 眼科 眼科
- 眼科手术 眼科手术
- 医疗器械 医疗器械
背景情况:
- 眼内压力 (IOP) 是治疗青光眼的关键指标.
- 眼科手术透镜通常用于诊断和治疗眼睛手术.
- 了解这些镜片对IOP的影响对于患者安全至关重要.
研究的目的:
- 为了量化眼内压力 (IOP) 升高在标准视镜,选择性激光护理 (SLT) 和激光 iridotomy 程序镜片的应用期间.
- 测量这些眼镜对眼球施加的力.
主要方法:
- 使用了12只尸体的眼睛,用压力传感器测量内压力和负载电池测量施加力的压力传感器.
- 六位眼科医生使用特定的手术镜头进行了模拟视镜,SLT和激光虹膜切除术 (Sussman,Latina,Abraham).
- 在模拟过程中,不断记录IOP (mm Hg) 和力 (克).
主要成果:
- 记录了IOP平均升高:阴膜镜 (43.2 ± 16.9 mm Hg),SLT (39.8 ± 9.9 mm Hg) 和激光虹膜切除 (42.7 ± 12.6 mm Hg).
- 镜头所施加的平均力:苏斯曼 (40.3 ± 26.4 g),拉丁 (66.7 ± 29.8 g) 和亚伯拉罕 (65.5 ± 35.9 g).
- 与拉丁和亚伯拉罕镜头相比,苏斯曼镜头施加的力要少得多 (P < 0.001). 阴影镜内和激光 iridotomy 坦波尼德导致显著的 IOP 尖峰.
结论:
- 标准的眼科手术透镜可以在尸体眼睛中将IOP提高约20 mm Hg以上的基线.
- 与拉丁和亚伯拉罕镜头相比,苏斯曼镜头的强力应用较低.
- 这些发现凸显了在手术过程中常见的眼镜镜片可能对内膜异位进行改变的影响.
相关概念视频
Open Angle Glaucoma: Treatment
432
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...
432
Angle Closure Glaucoma: Treatment
480
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...
480
Glaucoma: Overview
556
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
556

