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在生产劳动和日常生活中,眼球(尤其是眼球前部)易遭受来自前方的各种外伤,引起不同程度的视力减退,重者可致失明。一、眼外伤的特点1.眼球的组织结构精细而脆弱,对外伤的经受力差;色素膜血管丰富,受伤后可出现组织缺氧、水肿、反射性血管扩张、渗出和出血等改变;玻璃体没有血管,代谢不活跃,对感染的抵抗力低;瘢痕组织和新生血管的形成,使透明组织失去透明性,光学系统结构紊乱;眼内铁或铜质异物存留,可引起特殊的铁或铜锈沉着症。
In the production of labor and daily life, the eye (especially the front of the eye) vulnerable to various trauma from the front, causing varying degrees of vision loss, severe cases can cause blindness. First, the characteristics of ocular trauma 1. Eye tissue fine and fragile, poor tolerance to trauma; pigmented vascular rich in tissue damage may occur after hypoxia, edema, reflex vasodilation, exudation and bleeding changes; Vitreous without blood vessels, metabolism is not active, low resistance to infection; the formation of scar tissue and neovascularization, the loss of transparency of the transparent tissue, the optical system structure disorders; intraocular iron or copper foreign body can cause special iron or Copper rust syndrome.