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相关概念视频

Glaucoma: Overview01:25

Glaucoma: Overview

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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...
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Open Angle Glaucoma: Treatment01:27

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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...
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Angle Closure Glaucoma: Treatment01:28

Angle Closure Glaucoma: Treatment

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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...
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相关实验视频

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椎间板状网状网络在初级和二级光眼的超结构性变化.

Aparna Rao1,2, Tirupathi Rao3, Nagapriya Banka3

  • 1Glaucoma Service, LV Prasad Eye Institute, Kallam Anji Reddy Campus, Hyderabad, 500034, India. aparna@lvpei.org.

Scientific reports
|January 2, 2025
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概括

扫描电子显微镜揭示了明显的超结构性变化,在眼患者的眼网 (TM). 初级玻璃眼在角膜状网 (CSM) 中稀释TM光束,而类固醇和伪剥皮玻璃眼则显示出独特的沉积物.

关键词:
主要的玻璃眼 glaucoma 是一个主要的玻璃眼.扫描电子显微镜扫描电子显微镜二次性玻璃眼瘤是什么意思脊柱状的网状网状网状网状网状网.超结构的超结构

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科学领域:

  • 眼科医生 眼科 眼科
  • 细胞生物学 细胞生物学
  • 显微镜的使用方法

背景情况:

  • 轨道网 (TM) 对于水性幽默的外流和眼内压力的调节至关重要.
  • 了解TM超结构是诊断和治疗各种青光眼类型的关键.

研究的目的:

  • 通过扫描电子显微镜 (SEM) 在不同青光眼亚型中研究和比较TM中的超结构变化.
  • 为了区分TM形态在初级开角青光眼 (POAG),初级闭角青光眼 (PACG),伪剥皮青光眼 (XFG) 和类固醇诱导的青光眼.

主要方法:

  • 基于医院的定性描述性研究,在TM样本上使用SEM.
  • 从26名青光眼患者 (初级和二级) 和10名对照人群中获得的样本.
  • 分析的重点是TM光束,角膜状网 (CSM) 和直径管 (JCT) 区域.

主要成果:

  • 原发性青光瘤显示TM光束变薄,主要在CSM,省略了JCT.
  • 与POAG和XFG相比,PACG表现出更多的圆形和更薄的TM梁.
  • 类固醇玻璃眼显示无形沉积物;XFG显示TM光束上的囊泡体,与对照者不同.

结论:

  • 在初级绿眼中,TM光束稀释主要影响CSM区域.
  • 在类固醇诱导的玻璃眼和XFG中,独特的超结构性发现表明了不同的病理机制.
  • SEM为不同类型的玻璃眼瘤提供了对TM病理生物学有价值的见解.