corneal laceration surgery

Treating diseases: corneal ulcers Indication Corneal laceration surgery is suitable for: There are no lacerations of corneal tissue defects, including regular or irregular, infected or non-infected wounds, as long as the integrity of the wall is destroyed, the eye communicates with the outside world, and the continuous destruction of the main fiber components of the cornea is difficult to fight against normal intraocular pressure or cornea. Wounds with severe changes in surface refraction morphology should be sutured and repaired even if the wound has been closed by temporary cellulose or iris tissue. Contraindications Significant corneal tissue defects, suppurative eye content has occurred. Preoperative preparation Clean the face, especially the eyelids, rinse the lacrimal passages, fresh open wounds should not be washed with normal saline before surgery, and should be thoroughly rinsed with diluted antibiotic solution before the wound is cleaned. Surgical procedure 1. The key parts of the suture shape, such as the limbal area, and the corners of the irregular wound, the turning point, and the weakened part of the oblique pressure (vertical type splitting part). The span of the peripheral suture should be larger, and the inner suture should be placed deeper. The obtuse angle of the oblique wound is closer to the needle than the sharp edge. The star-shaped laceration should be carried out in the shape of a 10-0 line in the tip of the corneal flap. After the suture is ligated, the junction of the star wound is well sealed. Edema wounds, sutured with 7-0 silk, accelerate healing. 2, after the corneal wound is sutured, the line knot should be buried in the corneal parenchyma, fully form the anterior chamber to restore the intraocular pressure, and then use a dry cotton swab to roll on the surface of the cornea, and carefully check whether the wound is sutured and watertight.