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Related Experiment Video

Updated: Feb 21, 2026

Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction

Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction

Published on: October 13, 2017

Using the phacoemulsification crescent knife in dacryocystorhinostomy

K S Fong¹, A H Koh, C T Choo

¹Singapore National Eye Centre, Singapore.

Ophthalmic Surgery and Lasers

|May 8, 1998

Summary

This study introduces a safer and easier dacryocystorhinostomy technique using a phacoemulsification crescent knife for nasal and lacrimal sac incisions. This method effectively treats nasolacrimal duct obstruction.

Area of Science:

Ophthalmology
Surgical Innovation

Background:

Nasolacrimal duct obstruction (NDO) is a common condition affecting tear drainage.
Dacryocystorhinostomy (DCR) is a standard surgical treatment for NDO.
Conventional DCR techniques often involve traditional blades for mucosal and lacrimal sac incisions.

Purpose of the Study:

To describe a novel and potentially safer approach to dacryocystorhinostomy.
To evaluate the efficacy and ease of using a phacoemulsification crescent knife in DCR.

Main Methods:

The study details a modified DCR procedure utilizing a phacoemulsification crescent knife.
This instrument is employed for creating the primary incision in the nasal mucosa and lacrimal sac.

Main Results:

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The phacoemulsification crescent knife technique was found to be effective in performing dacryocystorhinostomy.
The described method offers advantages in terms of safety and ease of execution compared to conventional techniques.

Conclusions:

The use of a phacoemulsification crescent knife represents a viable and advantageous alternative for dacryocystorhinostomy.
This technique enhances surgical safety and procedural simplicity for treating nasolacrimal duct obstruction.