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相关概念视频

Focusing of Light in the Eye01:16

Focusing of Light in the Eye

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Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
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Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

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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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Fast and Slow Response of the Accommodation System in Young and Incipient-Presbyope Adults During Sustained Reading Task.

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Author Spotlight: Advancements in Refractive Surgical Correction for Presbyopia and Exploring Postoperative Visual Acuity
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边缘失焦在正视器科近视纠正:系统性审查和元分析.

António Queirós1,2, Inês Pinheiro1, Paulo Fernandes1,2

  • 1Clinical and Experimental Optometry Research Lab (CEORLab), School of Science, University of Minho, 4710-057 Braga, Portugal.

Journal of clinical medicine
|February 13, 2025
PubMed
概括

ортокератологии镜头有效地诱导近视失焦在儿童和青少年. 这一系统性审查和元分析表明,使用这些专用镜头对近视控制有潜在的好处.

科学领域:

  • 眼科医生 眼科 眼科
  • 眼镜测量是指眼睛的测量.
  • 视觉科学 视觉科学 视觉科学

背景情况:

  • 近视是一种日益严重的全球健康问题,特别是在儿童和青少年中.
  • 周围失焦是影响近视进展的关键因素.
  • 整形眼镜提供了一种修改外围折射误差的方法.

研究的目的:

  • 系统地审查和元分析由脊椎眼镜 (PDOK) 诱导的外围失焦对近视控制的影响.
  • 评估PDOK在诱导近视失焦的有效性,在特定的外围异常度.

主要方法:

  • 在PubMed和Web of Science上进行了全面的文献搜索.
  • 包括的研究是随机对照试验 (RCT) 和报告外围折射数据的队列研究.
  • 数据分析涉及到对30°偏心的球形相当的外周折射进行元分析.

主要成果:

  • 包括9项涉及259名参与者的研究 (3项RCT,6个队列).
  • 整形眼镜在30°鼻腔和腔异常度 (平均M = -2.67 D) 时始终诱导显著的近视失焦.
  • 较长的治疗持续时间 (长达一年) 与较短的治疗持续时间相比,显示出更大的诱导近视失焦的趋势.
关键词:
近视的进展近视的进展近视失焦的近视失焦.甲状腺瘤学 甲状腺瘤学 甲状腺瘤学周围折射的周边折射是什么

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结论:

  • 整形眼镜在儿童群体中有效诱导近视失焦在30°偏心时.
  • 这些发现支持PDOK作为近视控制策略的潜力.
  • 进一步的研究可能会优化治疗持续时间,以改善近视控制结果.