相关实验视频

Updated: Jun 27, 2025

Author Spotlight: Anterior HR-OCT as a Non-Invasive Tool for Characterizing Ocular Surface Squamous Neoplasia

Author Spotlight: Anterior HR-OCT as a Non-Invasive Tool for Characterizing Ocular Surface Squamous Neoplasia

Published on: August 9, 2024

使用扫描源前部段的初级角度闭合疾病的眼睛中与区域性不稳定性相关的形态特征 - 光学连贯断层扫描系统

Xue-Ting Pei¹, Shu-Hua Wang¹, Guo-Ping Qing¹

¹Beijing Ophthalmology and Visual Science Key Laboratory, Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing, 100730, China.

BMC ophthalmology

|April 29, 2024

概括

带有区域不稳定的PACD眼睛表现出明显的透镜形态特征,包括更的前曲率和更浅的前腔深度. 这些发现有助于理解PACD的进展和手术管理.

科学领域:

眼科医生眼科眼科
解剖病理学解剖病理学
医疗成像医学成像

背景情况:

主要视角关闭疾病 (PACD) 是视力损伤的重要原因之一.
区域性不稳定性使PACD患者的白内障手术复杂化.
了解PACD中的透镜形态对于手术结果至关重要.

研究的目的:

为了研究晶状透镜的形态特征在PACD患者带有区域不稳定.
为了比较PACD眼睛之间的透镜参数,带有和没有区域性不稳定性,以及白内障控制.
确定与PACD中区域性不稳定性相关的风险因素.

主要方法:

使用扫描源CASIA 2前段光学一致性断层扫描 (AS-OCT).
从398名患者中注册了398只眼睛 (125名PACD具有不稳定性,133名PACD具有稳定性,140名对照).
进行了后勤回归分析,以确定风险因素.

主要成果:

与对照人群相比,PACD眼睛显示前镜片赤道,前镜片曲,轴长较短,前腔距离 (ACD) 较浅,镜片顶较高 (LV),镜片较厚.
不稳定的PACD眼睛比稳定的眼睛具有更的前置透镜曲率,更厚的前置透镜部分,更高的前置到后置厚度比率,更浅的ACD和更大的LV.
后勤回归确定了区域不稳定性和前部厚度,前后厚度比和LV之间的正相关性;与镜片前半径和ACD的负相关性.

结论:

较的前镜片曲率,前部厚度增加,前后厚度比较高,较浅的ACD和较大的LV是PACD中带状不稳定的关键解剖特征.
这些形态特征是PACD患者白内障手术规划的重要考虑因素.
AS-OCT提供了与PACD手术并发症相关的透镜解剖学的宝贵见解.

关键词:

卡西亚2 AS-OCT 镜头前部曲率镜头前部曲率镜头前部的厚度镜头前部的厚度在 PACD 中,我们可以看到 PACD.区域性不稳定性区域性不稳定性

更多相关视频

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

$Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity$ 05:46

Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity

Published on: September 20, 2024

相关概念视频

Angle Closure Glaucoma: Treatment

Angle Closure Glaucoma: Treatment

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...

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...