视野依赖性在与年龄相关的中央视野损失中持续存在
Catherine P Agathos1, Natela M Shanidze1
1The Smith-Kettlewell Eye Research Institute, San Francisco, California, United States.
Investigative ophthalmology & visual science
|February 12, 2024
概括
视野依赖性在老年人中仍然存在中央视野损失 (CFL),特别是那些有密集的双眼视野视野损失的人. 降低对比度灵敏度与视野依赖度增加有关,这表明视觉功能在正常衰老之外下降.
科学领域:
- 眼科医生 眼科 眼科
- 神经科学是一个神经科学.
- 老年学是一门学科.
背景情况:
- 视野依赖性与年龄相关的增加是一个已知的现象.
- 中心场损失 (CFL) 影响视觉感知和空间定向.
- 了解CFL视野依赖对于康复至关重要.
研究的目的:
- 调查是否与年龄相关的视野依赖性在老年人中持续存在中央视野损失 (CFL).
- 为了在不同类型的CFL和年龄组中比较视野依赖.
主要方法:
- 20名患有慢性肺炎的人被分为双眼CFL,单眼CFL/相对性脊髓炎,以及早期CFL组.
- 包括17个年龄匹配的对照组.
- 视野依赖性是通过比较有和没有视觉参考的判断偏差来衡量的,并且与视觉敏度和对比度敏感性相关.
主要成果:
- 与年龄相匹配的对照人群相比,患有CFL的老年人表现出更大的视野依赖性,特别是双眼CFL的人.
- 在考虑所有三个较老的CFL组一起时,在视野依赖方面没有发现显著差异.
- 较差的对比度灵敏度与视野依赖度增加有显著的相关性.
结论:
- 视野依赖性持续存在,并且可能会在患有慢性肺炎的老年人中恶化,特别是在密集的双眼视野视野.
- 这些发现表明,视觉功能的下降,以减少对比度灵敏度为标志,有助于超出正常衰老的视野依赖度增加.
- 这些见解可以为经历CFL的老年人提供量身定制的护理和康复策略.
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