Kalium titanyl phosphate laser dredging combined with artificial nasolacrimal duct intubation for nasolacrimal duct obstruction

Abstract

Objective To evaluate the effect of Kalium titanyl phosphate (KTP) laser dredging combined with artificial nasolacrimal duct intubation for nasolacrimal duct obstruction.Methods 46 eyes of 46 patients with nasolacrimal duct obstruction were screened.They were also suffered with chronic dacryocystitis and were treated with KTP laser dredging combined with nasolacrimal duct intubation.All of them were followed up for 3 years.Results All of the 46 eyes of 46 patients were implanted with artificial nasolacrimal duct.They were operated successfully.The success rate was 100％ after half an year.The curative rate was 91％ in 1 year,87％ in 2 years and 80％ in 3 years after the operation.Conclusion KTP laser dredging combined with artificial nasolacrimal duct for nasolacrimal duct obstruction is a simple,safe and effective treatment method for nasolacrimal duct obstruction,without skin scars or changing of the physical anatomy. Key words: Laser, kalium titanyl phosphate; Nasolacrimal duct, artificial; Obstruction, nasolacrimal duct; Dacryocystitis, chronic