Ocular foreign body injuries: They are divided into extraocular foreign bodies and intraocular foreign bodies. Among them, intraocular foreign bodies are a type of ocular trauma that seriously endangers vision. The reaction within the eye depends on the chemical composition of the foreign body, its location and the presence of infection. If it is an inactive sterile foreign body such as sand, small stones, glass, porcelain, etc., the reaction will be mild, while in metallic foreign bodies, such as copper and iron, they are very toxic; while aluminum and zinc have a milder reaction and can be wrapped. After the patient is seen, the doctor will do a careful examination. Intraocular foreign body injuries are usually found as wounds on the surface of the eye, but some wounds are hidden. X-rays, ocular ultrasound, and CT scans may be done, each with its own advantages and disadvantages. As a reminder here, MRI cannot be used for metallic magnetic foreign body examination. Intraocular foreign bodies should generally be surgically removed early. The surgical method depends on the location of the foreign body, its magnetism, whether it can be seen, whether it is wrapped in tissue, and whether the infection in the eye is serious and whether there are other complications.