100多年前,人们就发现,人体的许多部位存在各种屏障,如血脑屏障、胎盘屏障等。其中,人类的眼睛之所以能够保持眼内外环境的稳定性,保证视网膜感光功能的安全,很大程度上依赖于一种眼球的特殊屏障———血眼屏障[1]。如果将不同的物质注入血液,并维持其恒定浓度,就会发现,同一物 More than 100 years ago, people discovered that there are various barriers in many parts of the body, such as the blood-brain barrier and the placental barrier. Among them, the human eye has been able to maintain the stability of the eye inside and outside the environment, to ensure the safety of retinal function, largely depends on a special eye barrier - blood-eye barrier [1]. If different substances are injected into the blood and maintain their constant concentration, it will be found that the same thing