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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.
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视近视的玻璃切除术后胆管输液的变化 拖拉力马库洛帕蒂 视近视的马库洛帕蒂

Miguel A Quiroz-Reyes1, Erick A Quiroz-Gonzalez2, Miguel A Quiroz-Gonzalez1

  • 1Retina Department of Oftalmologia Integral ABC (Medical and Surgical Nonprofit Organization), National Autonomous University of Mexico, Ciudad de Mexico, Mexico.

Seminars in ophthalmology
|November 22, 2023
PubMed
概括

在近视伸缩巨斑症 (MTM) 中,胸腔血管度指数 (CVI) 在手术前没有差异,但在手术后下降. 在MTM手术后的CVI和choriocapillaris流域 (CFA) 变化表明胆道变化,但CVI不是可靠的外科预测结果.

关键词:
中部子场的厚度.胆角囊的流量区域冠状动脉血管度指数 冠状动脉血管度指数近视力 引力 黄斑病变 黄斑病变病理性的近视近视.

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科学领域:

  • 眼科医生 眼科 眼科
  • 视网膜疾病 视网膜疾病
  • 血管生物学 血管生物学

背景情况:

  • 胸膜供应外视网膜,并且在视网膜疾病中受到影响,例如近视力拉力巨病 (MTM).
  • 胸膜厚度测量有其局限性;胸膜血管度指数 (CVI) 提供了定量血管流量数据.
  • CVI已在各种疾病中进行研究,但在MTM中没有广泛的特征.

研究的目的:

  • 在不同的MTM阶段调查CVI.
  • 评估黄斑外科手术对手术治疗的MTM中的胸腔 perfusion 标记物的影响.
  • 评估CVI作为MTM手术结果的潜在生物标志物.

主要方法:

  • 增强光学连贯性断层扫描 (OCT) 图像用于18个健康的近视眼和46个MTM眼睛.
  • 二元化OCT图像允许计算CVI,光胆道面积 (LCA) 和树叶胆道面积 (SCA).
  • 在基线和手术后,与CVI一起,也测量了胆管膜流量面积 (CFA) 和中心子场厚度 (CSFT).

主要成果:

  • 在MTM患者中,术后视力显著改善 (p < 0.0001).
  • 在对照组和MTM组之间没有发现CVI,CFA或CSFT的显著基线差异.
  • 在术后,MTM组的CVI和CFA与对照组相比显著较低 (p ≤ 0.0001),MTM阶段之间没有显著差异.

结论:

  • 手术前的CVI在健康的近视眼和MTM眼之间没有区别.
  • 与对照组相比,术后的CVI和CFA显著减少,这表明手术后的胆道变化.
  • 由于与视力敏度缺乏显著的相关性,CVI不是MTM手术结果的可靠生物标志物.