Clinical observation of new lacrimal drainage tube in the treatment of lacrimal passage obstruction

Objective To observe the clinical application and efficacy of new lacrimal drainage tube in the treatment of lacrimal duct occlusion.Methods It was a retrospective case series study.33 patients (37 eyes) were enrolled in the study with 7 male cases (7 eyes) and 26 female cases (30 eyes).The ages ranged from 20 to 63 years with an average (43 ± 5) years old.11 cases(11 eyes) were simple nasolacrimal duct stenosis and obstruction,22 cases (26 eyes) were nasolacrimal duct obstruction combined with chronic dacryocystitis.The course ranged from 3 months to 12 years.The new type of lacrimal drainage tubes were implanted.Results The tubes were placed successfully in all patients with a small amount of bleeding in 5 cases.There were no obvious discomfort and other complications in other cases.Postoperative follow-up time ranged from 11 to 16 months.26 eyes were cured,6 eyes were effective,the total effective rate was 86.49％.Conclusion This new lacrimal drainage tube is safe,easy to operate with good clinical effect in the treatment of lacrimal duct occlusion. Key words: Tube, drainage, lacrimal, new;  Obstruction, lacrimal;  Intubation, retrograde, lacrimal