相关实验视频

Updated: May 30, 2025

Retinal Vascular Reactivity as Assessed by Optical Coherence Tomography Angiography

Retinal Vascular Reactivity as Assessed by Optical Coherence Tomography Angiography

Published on: March 26, 2020

使用光学连贯性断层扫描血管学,比较先进的伪剥皮眼镜和初级开角眼镜之间的结构和血管参数

Yadollah Eslami¹, Hamed Hosseinikhah-Manshadi¹, Samaneh Gholamhoseinpour-Omran¹

¹Glaucoma Service, Farabi Eye Hospital, Tehran University of Medical Sciences, Qazvin Square, Tehran, Iran.

BMC ophthalmology

|January 28, 2025

概括

晚期伪剥皮视光眼 (PXG) 和初级开角视光眼 (POAG) 呈现类似的结构损伤. 然而,PXG眼睛表现出更大的血管恶化,特别是在斑点上,这表明一种明显的病理过程.

科学领域:

眼科医生眼科眼科
玻璃眼研究研究玻璃眼研究
医疗成像医学成像

背景情况:

伪剥皮眼镜 (PXG) 和初级开角眼镜 (POAG) 是不可逆转失明的主要原因.
了解这些青光眼类型的独特结构和血管特征对于有针对性的治疗策略至关重要.

研究的目的:

为了比较先进的伪剥皮青光眼 (PXG) 和初级开角青光眼 (POAG) 之间的结构和血管参数.

主要方法:

一项涉及81名患者106只眼睛的横截面研究.
眼科检查,周状视网膜神经纤维层 (RNFL) 和质细胞复合体 (GCC) 厚度测量.
光学连贯断层扫描血管造影 (OCTA) 来评估周围毛囊和黄斑血管密度 (VD).
线性混合效应建模用于统计分析,以相关的共变量进行调整.

主要成果:

与POAG患者相比,PXG患者年龄较大,视野平均偏差 (MD) 更差.
在PXG和POAG组之间,在周周毛囊RNFL和GCC厚度上没有发现显著差异.
在PXG眼中,在平均周皮囊区域和特定的副四分位 (鼻和下部) 中,血管密度明显较低.

结论:

先进的PXG和POAG在周毛囊和内黄斑区域具有相似的结构性视网膜损伤.
与初级开角青光眼相比,伪剥皮青光眼可能涉及更明显的血管损害,特别是在斑点内,比起初级开角青光眼.

关键词:

晚期的玻璃眼瘤是什么?光学连贯性断层扫描血管图谱主要的开放角度眼镜.伪剥皮绿内障伪剥皮绿内障

更多相关视频

Evaluation of Capillary and Other Vessel Contribution to Macular Perfusion Density Measured with Optical Coherence Tomography Angiography

Evaluation of Capillary and Other Vessel Contribution to Macular Perfusion Density Measured with Optical Coherence Tomography Angiography

Published on: February 18, 2022

In vivo Structural Assessments of Ocular Disease in Rodent Models using Optical Coherence Tomography

In vivo Structural Assessments of Ocular Disease in Rodent Models using Optical Coherence Tomography

Published on: July 24, 2020

相关概念视频

Glaucoma: Overview

Glaucoma: Overview

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...

Open Angle Glaucoma: Treatment

Open Angle Glaucoma: Treatment

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...