身体位置和一天中的时间对眼睛节律的影响
1University of Houston College of Optometry, 4401 MLK Blvd, Houston, TX, US.
Scientific reports
|July 22, 2025
概括
身体的位置和一天的时间显著影响眼睛的测量,如轴长和眼内压力 (IOP). 这些发现突出了外部因素如何与日常节奏相互作用,影响眼睛健康.
科学领域:
- 眼科医生 眼科 眼科
- 身体生理学 身体生理学
- 时间生物学 时间生物学
背景情况:
- 众所周知,每天的变化和身体的定位会影响生理参数.
- 了解这些影响对于解释眼部测量和管理眼部疾病至关重要.
研究的目的:
- 研究白天时间 (早上/晚上) 和身体位置 (直立/仰卧) 对眼部生物量,眼内压力 (IOP) 和视网膜微血管结构的影响.
- 确定这些因素如何相互作用以影响眼睛节律.
主要方法:
- 23名参与者 (年龄22-46岁) 接受了四次4小时的会议,时间和身体位置各不相同.
- 测量包括血压,心率,内压,轴长,以及每2小时一次的光学连贯性断层扫描 (OCT/OCTA).
- 在从仰卧到直立的位置过渡后,还测量了内压.
主要成果:
- 早上直立姿势使轴长度增加10.0微米;卧卧姿势使其减少8.7微米.
- 夜间直立姿势使轴长度减小了18.3微米,胸膜厚度增加了7.7微米.
- 夜间仰卧姿势显著减少了轴长 (37.0微米) 和增加了胸膜厚度 (14.1微米).
- 在过渡到直立姿势时观察到急性IOP下降.
- 没有检测到视网膜微血管结构的显著变化.
结论:
- 身体位置和一天的时间都显著影响轴长和胸腔厚度.
- 眼内压力 (IOP) 也会受到身体位置变化的影响.
- 这些外在因素与日间节律相互作用,调节眼睛的生理变化.
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