Magnetic foreign body extraction in anterior chamber and anterior chamber angle

Magnetic foreign matter determination: (1) According to medical history: It is important to fully understand the condition of the injury at the time to determine the nature of the foreign body. (2) Magnetic test: After the foreign matter in the ball is positioned, magnetic tests can be performed on the wall of the eyeball according to the position of the foreign object with different types of electromagnets (magnetic magnetic positives are magnetic foreign objects). Treating diseases: foreign bodies in the eye Indication Foreign bodies in the vitreous body, foreign bodies in the wall of the eyeball, and the like. Preoperative preparation The sputum is dripped before surgery to protect the lens. Surgical procedure 1. anterior chamber foreign body: located in the position of the foreign body warp for the full-thickness of the cornea, the incision is located within the limbus 1mm, the length of the incision should be greater than the foreign body diameter of about 1mm. With a hand-held electromagnet, the electromagnetic head approaches the incision from far to near, each time the electromagnet is moved forward, and the electric door is actuated once. When the electromagnet moves to the edge of the incision and sees the foreign matter that has attracted the incision, the assistant uses the iris recovery device. The back lip of the incision is lightly pressed, and the foreign matter is adsorbed on the electromagnetic head. If the foreign body is firmly wrapped by the iris tissue, the cornea can be cut and attracted to the foreign body as described above. When the iris and the foreign matter are sucked to the incision, the power is cut off, and then the foreign body is carefully peeled off from the iris by the forceps, and then the iris is restored. Front room. If the incision is large, suture 1 to 2 needles, and inject air into the anterior chamber to prevent adhesion before the iris. Postoperative treatment: daily dressing change, drip sputum and antibiotic solution, if suture can be removed in 10 to 14 days. 2. Foreign body in the anterior chamber angle: the position of the foreign body is opposite to the position of the foreign body at 1 mm in the limbus, and the foreign body is removed with the foreign body in the anterior chamber. complication (1) postoperative bleeding. Appropriate application of hemostatic agents before and after surgery. (2) Retinal detachment. Preoperative and post-examination, those with holes can be closed with argon hormone; those with fibrous cords can retract the retina, vitreous resection can be performed; those with larger holes can be scleral cerclage; vitreous gas injection for macular holes . (3) Endophthalmitis. Apply antibiotics systemically and topically. (4) Sympathetic ophthalmia.

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