摘要
目的：观察初入高海拔地区１～７天视网膜缺氧性改变过程及程度，间接获取脑血管的动态情况，为早期预防急性高原病提供借鉴资料；方法：对初入海拔５３８０ｍ同一群体的２５名男性健康青年采用ＹＺ—６Ｂ型强光源直接眼底镜在静息状态下观察进入高原第１～７天的视网膜动态；结果：初入高海拔地区的第２、３、４天视网膜动静脉痉挛，怒张的检出率均为４％，视乳头充血于第１、２、３、４天出现，检出率依次为１６％、１２％、１２％、８％，视网膜渗出于１、２、３、４天尤为突出，检出率依次为５２％、８８％、９６％、９２％，视网膜动、静脉，视乳头充血及网膜渗出于缺氧的第１个２４小时内发生，于第５、６、７天渐恢复至平原正常人水平；
Objective:To explore the effects of altitude hypoxia on retina to early prevent acute mountain sickness.Methods:The eye fundus of 25 healthy youth,(age range,18 to 27 years),exposed to 5 380m altitude for 1 to 7 days,were examined,twice/day at rest,using a YZ6B opthalmoscope and based on a baseline in sea level.Results:The retina of 4% of the subjects showed a convulsion of the artery and vein,and the capilloedema of 16%,12%,12%and 8% of the subjects was found on 1st,2nd,third and 4th postaltitude days respectively,while the proportion of exude in retina in same days was 52%,88%,96%and 92%.These changes of retina presented significantly in the first 24hr exposed altitude and recoved slowly to baseline after 5,6 and 7 days.Conclusion:The altitude hypoxia results in the changes of retina especially during 4days firstly.
出处
《高原医学杂志》
CAS
1998年第4期18-19,共2页
Journal of High Altitude Medicine
关键词
高海拔地区
视网膜
脑血管
低氧
青年
High altitude
Retina
Edema
Congestion
Opthalmoscope
