头低位卧床对眼内压、近视力、视野的影响及其中药防护  

Effects of Head Down Tilt on Intra-ocular Pressure,Near Vision,and Visual Field and the Protection Effect of Chinese Herbs.

作　　者：许欣[1] 徐志明[1] 刘国印[1] 徐利明[1] 王宝珍[1] 何宏[1] 

机构地区：[1]航天医学工程研究所,北京100094

出　　处：《航天医学与医学工程》2002年第6期419-422,共4页Space Medicine & Medical Engineering

基　　金：国家载人航天工程项目资助

摘　　要：目的观察头低位卧床模拟失重对人体眼压、视野、近视力的影响 ,及中药对抗模拟失重的效果。方法 1 0名被试者随机分成对照组和中药组 ,用头低位 - 6° 2 1d卧床模拟失重 ,分别于卧床前、中、后测量两组被试者眼内压、近视力及视野。结果眼内压及近视力在卧床期间呈波动下降趋势 ,两者间存在一定相关性 ;中心视野变化无显著性 ;服中药可在一定程度上防止近视力下降。结论 1 )头低位卧床可引起眼压、近视力下降 ;2 )Objective To observe the influences of 21 d head down tilt(HDT) bed rest on the intra ocular pressure, visual field and near vision in human and to study the countermeasure of Chinese herb against weightlessness. Method Ten subjects were randomly divided into control group and Chinese herb group.-6°HDT was used to simulate weightlessness. Intra ocular pressure, near vision and vision field were measured before, during and after bed rest in both groups. Result Intra ocular pressure and near vision showed a wavelike decrease change during bed rest, and there exists a certain coherence between them. Visual field showed no obvious changes. Taking Chinese herb was able to antagonize the decreasing of intra ocular pressure and near vision during various phases of bed rest. Conclusion 1) Bed rest could lead to the decreasing of intra ocular pressure and near vision;2) Taking Chinese herb was able to antagonize the negative influences of bed rest on visual function.

关 键 词：中药 失重模拟 头倒位倾斜 卧床实验 眼内压 近视力 视野 

分 类 号：R852.22[医药卫生—航空、航天与航海医学]