Laser Transcanalicular DCR

Abstract

Objective: 1) To find out the success rate of LASER transcanalicular DCR.

Method: Retrospective study from December 2008 to June 2011. Nasolacrimal duct obstruction causing epiphora. All the cases of laser transcanalicular DCR operated in the ENT department. These surgeries were performed by the author and co-author of the same unit. Patency of the nasolacrimal fistula as determined by syringing.

Results: Forty-two cases of laser DCR were performed in the above mentioned period. Age group varied from 8 to 58 years. Ony 31 cases were available for prolonged follow-up. The remaining 11 cases could not be traced. Out of 31 cases, 21 cases had no problem and the rhinostomy site was patent on syringing. Success rate −67.7% (21 cases). Ten patients had blocked rhinostomy site ob syringing thus the failure rate −32.2% (10 cases). All the failure cases under revision DCR using laser with lacrimal intubation using silicon stents in 8 cases.

Conclusion: The failure of the laser transcanalicular DCR was because of occlusion of rhinostomy site by granulations, small opening, an and formation of synechiae. This was attributed to smaller opening made with laser, inadequate bony opening, formation of multiple openings in an attempt to enlarge the rhinostomy, or failure to identify correct rhinostomy site.