KTP laser lacrimal 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 KTP laser lacrimal passage is suitable for: 1. The punctum is occluded. 2. The tubules are blocked. 3. Total tear tubule obstruction. 4. The nasolacrimal duct is blocked. 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. Punctal occlusion: After finding the exact position of the punctum, use laser to shoot, when there is a feeling of falling, when shooting, then expand the punctum, rinse the lacrimal passage with saline, and confirm that the lacrimal duct is unblocked and then insert a thin plastic tube. Apply antibiotic eye ointment to cover the eye. 2. Tear tube or total lacrimal duct obstruction: 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. Nasal lacrimal duct obstruction: Expand the punctum according to the method of lacrimal passage and insert the 1 or 2 lacrimal probe. When the probe is in the obstruction of the nasal canal, the needle is not inserted downward. The rough type lacrimal needle is used to replace the lacrimal probe of the hollow core. After the core is pulled out, the laser light guiding fiber is inserted, and the continuous shooting is performed at the blocking position (output power 8 to 14 W, pulse frequency 3000 to 5000 pps) ), when the resistance is removed, there is a sense of falling, and the fiber is pulled out, and the probe can be pulled down and pulled out for flushing. 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.