tear duct probing

Congenital lacrimal duct obstruction usually starts about half a month after birth, and can be expressed as tears and secretions. Squeezing the lacrimal sac area often has purulent secretions. For children within two months, you can massage the lacrimal sac area according to your doctor's advice to relieve symptoms and fight for self-healing. Children with the above symptoms should go to the hospital for lacrimal passage flushing to check for the presence of lacrimal duct obstruction. Children who are 2 to 4 months old have not been cured by conservative treatment and need to undergo lacrimal passage surgery. Treatment of diseases: lacrimal duct obstruction Indication Lacrimal Pathfinder is applicable to: 1. The history of the tears is shorter (less than half a year), and the mucus or purulent secretions in the lacrimal sac are overflowed from the punctum, and the lacrimal passage is not available. 2. Spilling tears, no secretions from the lacrimal sacs overflowing from the punctum, or mucus purulent, after the drug treatment, the pus disappears, the lacrimal passage is flushed, and the lacrimal duct probe can be used to probe the lacrimal passage. 3. Neonatal dacryocystitis, due to the congenital membrane closure of the nasolacrimal duct, the mucus or purulent secretions in the lacrimal sac are overflowing from the punctum, and the local massage and antibiotic eye drops are ineffective, and the appropriate pressure is flushed. Still unable to pass after the lacrimal passage. Contraindications 1. Acute dacryocystitis. 2. Although there is no acute inflammation in the lacrimal sac, there are a lot of mucopurulent secretions in the lacrimal sac, and those who have not undergone proper local anti-inflammatory treatment. Preoperative preparation Rinse the lacrimal passages thoroughly with saline. Surgical procedure 1. Take the sitting position, push the lower jaw to the outside with your finger, fix it to the outer edge of the armpit, make the lacrimal canal straighten tightly, insert the punctum dilator vertically into the punctum, and then turn horizontally to the nose. On the side, rotate the dilator in a horizontal direction with a little force to enlarge the punctum. 2. Using the No. 1 or No. 1 lacrimal probe, insert the punctal point vertically, then turn to the level, and slowly push the probe forward in the canaliculus, about 12mm, when the probe hits the hard resistance of the humerus. , suggesting that the probe has reached the lacrimal sac. If the needle is not deep, that is, when it encounters elastic resistance, it indicates that the lacrimal canal is obstructed. At this time, the needle can be pushed forward slightly. If it can pass, continue to push the probe until it hits the hard bone wall. If the blockage is firm and the probe is difficult to advance, do not force it through, and you should not turn the probe down. Otherwise, the tear duct will be worn, causing false roads. 3. After the probe enters the lacrimal sac, it should be lightly pressed against the bone wall, and keep the probe not retreating. Then, the needle end is lightly pressed against the bone wall as the fulcrum, and the probe tail is rotated by 90°, and the direction is turned from horizontal to the frontal. When rotating, the probe should be close to the forehead, do not lift, and finally push the probe slightly backwards and downwards. When the probe enters the nasolacrimal duct from the lacrimal sac, the probe can be sensed to slide from the bone socket into the bone tube. If the needle is smooth and has no resistance, it indicates that the nasolacrimal duct is in a normal state; if it encounters resistance when entering the needle, it indicates that the lacrimal duct is obstructed, and the blocked part can be judged according to the length of the needle. At this point, the probe can be pushed down a little, and if the obstacle is overcome, the probe can continue to push down to the nasal cavity. If the obstruction is difficult to explore, it is not necessary to use force to forcibly explore to avoid damage. 4. If you want to expand the lacrimal passage while exploring the lacrimal passage, you can use a smaller type of probe, such as No. 00 or No. 0, and then gradually replace the thicker probe. Generally, you need to keep the needle for about half an hour. Then pull the probe out.

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