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相关概念视频

Visual System01:26

Visual System

Light enters the eye through the cornea, a transparent, dome-shaped surface covering the surface of the eyeball that helps to direct and focus incoming light. This light is then channeled toward the pupil, an adjustable opening whose size is controlled by the iris. The iris, a pigmented muscle, regulates the amount of light entering the eye by contracting or dilating the pupil, thereby ensuring optimal light levels for clear vision.
Once through the pupil, the light passes through the lens, a...

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Updated: Jul 10, 2026

Techniques for Processing Eyes Implanted With a Retinal Prosthesis for Localized Histopathological Analysis
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一个关于视觉假肢的更新.

Kailyn A Ramirez1, Laura E Drew-Bear2, Maria Vega-Garces3

  • 1Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, 08901, USA.

International journal of retina and vitreous
|November 23, 2023
PubMed
概括
此摘要是机器生成的。

本综述更新了用于视网膜色素炎 (RP) 和其他疾病的视网膜假体. 商业化面临的挑战包括长期影响和资金,尽管一些设备显示出希望.

关键词:
人工视觉是一种人工视觉.视网膜假体是一种视网膜假体.视网膜炎的颜色素刺激 刺激 是一种刺激.视觉假肢是一种视觉假肢.

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科学领域:

  • 眼科医生 眼科 眼科
  • 生物医学工程 生物医学工程
  • 神经科学是一个神经科学.

背景情况:

  • 皮质视网膜炎 (RP) 和干燥的与年龄相关的黄斑变性 (AMD) 会导致视力丧失.
  • 视网膜假肢旨在恢复这些疾病患者的视力.
  • 技术进步正在推动新的视觉植入物的开发.

研究的目的:

  • 审查当前和已停产的视网膜和视觉假肢.
  • 检查新植入物是否有诸如干性AMD之类的症状.
  • 讨论视网膜假肢技术的未来方向.

主要方法:

  • 在PubMed,Google Scholar,ScienceDirect和ClinicalTrials数据库中进行全面的文献搜索.
  • 包括关于全球进展,临床试验和设备状态的文章,直到2022年12月.
  • 对视网膜假肢设备的现有证据进行系统审查.

主要成果:

  • 目前已经确定了13种视网膜假体设备,按刺激位置分类.
  • 六种设备正在进行临床试验.
  • 尽管获得了FDA和CE标志的批准,但四种设备,包括ARGUS II,已经停止生产.

结论:

  • 几种视网膜假体设备已经在人类和动物中证明了视觉感知.
  • 商业化受到一些因素的阻碍,包括长期结果评估,验证的措施,资金和患者人数.
  • 未来的研究重点是开发更具生物相容性,安全和有效的设备.