Most orbital foreign bodies are caused by accidents. Common orbital foreign bodies include metal shrapnel, gunshot, or wood or bamboo fragments. There may be local swelling and pain. The foreign body can be removed in stages, i.e., the exposed shallow foreign body is discharged first, and the foreign body buried in the deep corneal layer can be left untreated. If the foreign body is large and has partially penetrated the cornea into the anterior chamber, foreign body extraction should be performed in the operating room, and the corneal wound should be sutured if necessary. Examination of orbital foreign body: 1. Diagnosis based on characteristic manifestations: It is important to clarify the history of trauma. Some patients can be diagnosed with a clear history of orbital penetrating injury; however, some patients, especially pediatric patients, deny a history of trauma, and some patients have penetrating wounds via the conjunctiva that are obscured by hemorrhage and edema and are missed at the time of initial diagnosis, or orbital cellulitis, orbital abscess, or fistula occurs after the wound has healed for a period of time; intraorbital foreign bodies should be highly suspected and the patient should be reminded of the history of trauma if necessary. Periorbital fistula formation Repeated cellulitis and fistula formation should raise a high suspicion of an intraorbital vegetative foreign body. When the fistula is flushed, the foreign body may sometimes be expelled. X-rays can show metallic foreign bodies, but not stones, glass, plastic, or vegetative foreign bodies. 3.Ultrasound examination: It is unique for intra-orbital foreign body because the vitreous body in the eye is an echogenic area, and the positive rate of foreign body is very high in such a background. However, foreign bodies and orbital fat are both strongly echogenic and attenuated to acoustic energy. Only larger foreign bodies near the bulb wall or hemorrhages or granulomas around foreign bodies with hypoechoic areas can be detected. Clinically, vegetative foreign bodies are less frequently detected by ultrasound.