视网膜氧和度的24小时日间变化
Rachel C Williams1, Wendy W Harrison1, Andrew Carkeet2
1University of Houston College of Optometry, 4401 Martin Luther King Blvd, Houston, TX 77204, United States.
Vision research
|September 1, 2023
概括
视网膜氧和度显示出每日显著的变化,受眼内压力和胸膜厚度等因素的影响. 了解这些日间变化是诊断视网膜疾病的关键.
科学领域:
- 眼科医生 眼科 眼科
- 生理学 生理学 生理学
- 医学诊断 医学诊断 医学诊断
背景情况:
- 视网膜氧和对视力至关重要,并受到血管健康,眼内压力 (IOP) 和细胞功能的影响.
- 视网膜病理中的微血管变化显著影响氧化.
- 研究视网膜氧化的日间变化对于了解眼睛健康至关重要.
研究的目的:
- 为了调查视网膜氧度测量的日间变化.
- 在24小时内评估视网膜氧化与其他眼部和全身生理过程之间的关系.
主要方法:
- 健康的成年人 (n=18) 在24小时内每小时测量视网膜氧度,IOP,OCT,OCT血管图 (OCTA),生物测量,血压和氧气部分压力.
- 对于各种参数的振幅和度确定,使用了共相匹配.
- 多重回归分析比较了不同生理指标之间的关系.
主要成果:
- 视网膜氧和表现出显著的日间变化 (振幅5.84±3.86%,缩2.35h).
- 还观察到IOP,眼 perfusion 压力 (MOPP),轴长,胆道厚度,表面血管密度,心率,静脉血压和平均动脉压力 (MAP) 的日间显著变化.
- 视网膜氧和度变化与胸腔厚度,IOP和表面血管密度相应,与轴长度和MOPP相异.
结论:
- 视网膜氧化和在24小时周期内表现出显著的日间变化.
- 这些发现增强了对影响叶区域氧化的内在和外在因素的理解.
- 这项研究强调了视网膜氧化的动态性质及其与其他生理参数的关系.
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