Laser tear duct dredging

Laser technology has developed rapidly in the past 10 years and has been widely used in medical fields including ophthalmology. This high-tech has been successfully combined with the clinical treatment of lacrimal duct obstruction, and has achieved good results. Treatment of diseases: lacrimal duct obstruction Indication Laser lacrimal passage is suitable for: 1. The punctum is closed. 2, tear duct obstruction. 3, the total tear duct obstruction. 4, nasolacrimal duct obstruction. 5, neonatal nasolacrimal duct membrane. 6. Cases of failure of dacryocystorhinostomy. Contraindications There is acute inflammation in the lacrimal passage. Preoperative preparation Rinse the lacrimal passage and conjunctival sac with saline. Surgical procedure 1. After the punctal point is closed and the exact position of the punctum is found, the laser is used to shoot, and when the shot is shot, there is a feeling of falling, and then the puncture is enlarged by the shot, and the lacrimal passage is flushed with physiological saline to confirm that the thin plastic tube is inserted after the lacrimal passage is unblocked. Apply antibiotic eye ointment to cover the eye. 2, the lacrimal canal or the total tear duct obstruction will fix the eyelids, so that the lacrimal canal becomes straight and tight. First use the punctum dilator to enlarge the punctum, then use the 0 or 1 probe to insert the lacrimal canal to the obstruction, properly expand the lacrimal canal, and accurately grasp the obstruction site, then replace the lacrimal probe with the hollow core and pull out The needle core inserts the laser light guiding fiber and aligns it with the continuous ejection (output power 8~14W, pulse frequency 3000~5000pps). After the resistance is eliminated, the fiber is extracted, the physiological saline is injected, and the lacrimal passage is confirmed. After unobstructed, insert a thin plastic tube and secure one end of the tube to the outside of the eyelid. 3, nasolacrimal duct obstruction according to the method of exploration of the lacrimal passage to expand the punctum, insert the 1 or 2 lacrimal probe, when the probe is in the obstruction of the nasal canal, the needle is no longer downward, and the appropriate replacement is slightly thicker. Model lacrimal needle, replace the lacrimal probe with hollow core needle, pull out the needle core, insert the laser light guide fiber, and shoot continuously at the obstruction (output power 8~14W, pulse frequency 3000~5000pps) When the resistance is removed, there is a feeling of falling, and the fiber is pulled out, and the probe can be pulled down and pulled out. It is also possible to directly rinse the lacrimal passage after the shot, confirm the withdrawal of the lacrimal passage, insert a thin plastic tube, and fix one end of the tube to the outside of the crucible.

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