Surgical procedure steps for nasolacrimal duct obstruction

Under normal circumstances, surgical treatments for nasolacrimal duct obstruction include lacrimal duct probing, nasolacrimal intubation, dacryocystorhinostomy, and laser dacryoplasty. Taking lacrimal duct probing as an example, the specific procedure is as follows:

1. The patient lies in a supine position or sits upright and receives local anesthesia.

2. Anesthetic eye drops are administered into the conjunctival sac to reduce pain during the procedure.

3. A lacrimal probing needle is inserted through the upper punctum, advancing through the canaliculus, common canaliculus, lacrimal sac, and nasolacrimal duct until reaching the obstructed site.

4. Pressure is applied with the probing instrument to open up the obstructed area.

Lacrimal duct probing may cause some trauma and potentially minor bleeding. To minimize harm to the body, it is recommended to undergo the procedure at a正规 hospital under the guidance of a qualified physician to reduce surgical risks. If symptoms persist despite treatment, alternative therapeutic approaches should be considered.