角膜表浅异物不只是工人中的重要眼外伤之一,同时也是部队日常训练、施工及战时最常见的眼外伤,约占眼外伤的四分之一以上。致伤物是多方面的:①金属异物(如体积甚小的弹片、金属碎屑等);②非金属异物(如玻璃碎片、飞沙、煤屑等);③动物或植物性异物(如昆虫之毛刺、睫毛、植物荆棘或种子等)。以上各种异物均能迷入眼,尤以金属异物为多见。若异物速度不大时,可以停留于结膜囊、角膜表面或其浅层(异物速度大时可造成眼内异物,不在此讨论)。一旦异物入眼,患者立即出现怕光、流泪、异物感、疼痛及反射性瞬目等症状。并可引起视力障碍而影响训练和战斗。因此,作为部队军医,就必须熟练地掌握角膜表浅异物的处理方法。(一)处理原则:1.要及时,所有的角膜表浅异物应于外伤后立即除去。因为异物的存在,不仅可引起怕光、流 Superficial corneal foreign body is not only one of the major eye injuries in workers, but also the most common eye injury during military training, construction and wartime, accounting for more than a quarter of eye injuries. Injury is multifaceted: ① metal foreign objects (such as very small pieces of shrapnel, metal debris, etc.); ② non-metallic foreign objects (such as glass fragments, sand, coal and other debris); ③ animal or plant foreign body Insect burr, eyelashes, plant thorns or seeds, etc.). All kinds of foreign body can be fascinated by the above eye, especially metal foreign body is more common. If the foreign body speed is not large, you can stay in the conjunctival sac, corneal surface or its superficial (foreign body velocity can cause intraocular foreign body, not discussed here). Once the foreign body into the eye, patients immediately fear of light, tears, foreign body sensation, pain and reflex blink symptoms. And can cause visual impairment and affect training and combat. Therefore, as a military army doctor, we must master the treatment of corneal superficial foreign body. (A) principles of treatment: 1. In time, all the superficial corneal foreign body should be removed immediately after the trauma. Because of the existence of foreign body, not only can cause fear of light, flow