Clinical study on repairing canalicular laceration and treating chronic dacryocystitis with application of the nasal lacrimal drainage device

Objective To repair canalicular laceration, treat nasolacrimal duct obstruction and dilatate the stenosis of nasoalacrimal duct caused by dacryocystitis, we designed and developed the new lacrimal drainage device. Methods The new lacrimal drainage device consists of two parts. Metallic probes were at each end, and a soft silicon tube was in between. Forty two patients (27 patients with dacryocystitis, 15 patients with lacrimal laceration,23 females, 19 males) were treated by the probing of lacrimal passage firstly, the device was inserted into lacrimal drainage system from superior and inferior puncta with topic anesthesia, and then extracting each end of the device in nasal cavity with endoscope. The silicon tube was left in situ for about 3 months. Three months after surgery the device was extracted. Results Symptoms of epiphora disappeared in the first week after surgery. In three months following up after extraction of the silicon tube, the nasolacrimal passage in 21 patients with chronic dacryocystitis and 15 patients with lacrimal laceration were drained well and in 6 patients dacryocystitis recurred.Conclusion The therapy with the new lacrimal drainage device is effective in the repair of canalicular laceration and treatment of chronic dacryocystitis.