失重状态对眼部影响的研究进展

Recent progress of weightlessness impact on the eye

随着人类太空探索的增加,失重状态下的人体改变成为许多科学家研究的热点。失重状态下,头面部血流分配会增加,随之也会造成眼部供血状态的改变,这种改变对眼部产生一系列的病理生理变化。本文综述了失重状态对眼部的主要影响,包括眼底病变（视乳头水肿、脉络膜皱褶、棉絮斑、神经纤维层增厚）,视功能下降（近视力下降、固视和追随物体能力下降、视网膜和视路功能受损）及眼压升高。

The impact of weightlessness on the eye becomes more and more important with the increase of human space exploration.There is significant elevation in cephalad fluid and ophthalmic vein when individuals are in the state of weightlessness.In this paper,we review adverse effects in weightlessness station,including：retina damage （disc edema,choroidal folds,cotton wool spots,nerve fiber layer thickening）,visual function decrease （decreased near vision,decreased ability of acquire and fixate on the target）,and intraocular pressure increase.