临床表现 临床表现
1PSMMC, Riyadh, Saudi Arabia.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 24, 2025
概括
视觉处理缺陷与早期阿尔茨海默病 (AD) 的认知衰退密切相关. 这些障碍,包括运动感知和对比度敏感性,可以作为阿尔茨海默病的早期诊断生物标志物.
科学领域:
- 神经科学是一个神经科学.
- 眼科医生 眼科 眼科
- 老年学是一门学科.
背景情况:
- 阿尔茨海默病 (AD) 显著影响视觉处理,影响认知表现.
- 视觉注意力,对比度敏感性和运动感知障碍在阿尔茨海默氏症中很常见.
- 视觉缺陷可能会在明显的认知衰退之前出现,这表明早期AD检测的潜力.
研究的目的:
- 系统地审查证据,将视觉处理缺陷与阿尔茨海默病早期认知衰退联系起来.
- 确定用于评估这些视觉缺陷的神经眼科工具.
- 评估视觉处理缺陷在阿兹海默症早期诊断中的潜在作用.
主要方法:
- 在PubMed,Scopus,Embase和Web of Science的系统文献搜索 (2010年1月至2024年12月).
- 包括检查AD或轻度认知障碍 (MCI) 患者视觉处理指标的研究.
- 批判性地评估研究质量和与研究问题的相关性.
主要成果:
- 二十四项研究 (10,211名参与者) 显示,阿尔茨海默病患者在运动感知 (SMD = -0.89),斜视眼动 (SMD = -0.76) 和对比度敏感性 (SMD = -0.82) 方面存在显著缺陷.
- 轻度认知障碍 (MCI) 患者表现为中度认知障碍.
- 视觉处理缺陷与认知得分有很强的相关性 (r = 0.52至0.63,p < 0.001).
结论:
- 视觉处理缺陷与阿尔茨海默病早期认知衰退之间存在一致的关联.
- 视觉缺陷显示为早期阿尔茨海默病检测的非侵入性生物标志物具有前途.
- 需要进一步的研究来确定这些发现的临床实用性,以便及时干预.
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