Lacrimal duct probing and dilation

Check for obstruction of the lacrimal passage, determine the obstruction site and expand the narrow lacrimal duct. In general, this operation is used for the first time patients with tears overflowing through the lacrimal passage, or through the lacrimal passage, but no obvious exudation of lacrimal discharge. Or in order to determine the obstruction or stenosis of the lacrimal duct, the extent, the nature of the lesion, the obstruction of the lacrimal passage in adults, and the congenital lacrimal duct obstruction. Treatment of diseases: lacrimal passage obstruction Indication 1. For the first time, the patient with tears overflowed through the lacrimal passage or was unable to pass through (the lacrimal duct stenosis), but there was no obvious exudation of lacrimal discharge. 2. Obstruction of the lacrimal duct in an adult to determine the location, extent, and nature of the occlusion of the lacrimal passage. 3. Congenital lacrimal duct obstruction. Children with simple nasolacrimal duct obstruction over half a year old, or children with congenital nasolacrimal duct obstruction who are ineffective through lacrimal passage washing, massage, etc. Contraindications Absolute contraindication (1) Patients with acute dacryocystitis. (2) Patients with chronic dacryocystitis with severe conjunctival inflammation. 2. Relative contraindications (1) There is a large amount of purulent discharge overflow in the lacrimal passage. (2) suspected lacrimal tumors. (3) Children with simple congenital nasolacrimal duct obstruction under half a year of age. Surgical procedure 1. Using the No. 0 lacrimal probe, the punctum is inserted vertically in the same way as the punctum expansion. After entering about 2 mm, the needle handle is rotated 100° to the temporal side to make it horizontal and slightly inclined upward. 2. Push the probe to the nasal side, and tighten the lower jaw skin to the temporal side to straighten the lower tear tube to avoid false passage. The lacrimal sac can be reached after about 10 mm. 3. The probe can touch the side wall of the lacrimal sac, and then the needle shank is turned upwards with the probe head end as the center. 4. Insert the nasolacrimal duct down and down (about 15° forward). When inserting, it should be down with its natural pipe. It should not be forced to insert or deviate from the vertical line to avoid false roads. Insert the approx. 25mm to reach the lower nasal passage. 5. If you want to expand the nasolacrimal duct, change the thicker lacrimal duct probe in turn to insert the lacrimal duct. The lacrimal passage was washed after the operation. complication If a false circuit occurs, antibiotics should be used systemically for 3 to 5 days to prevent infection.