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Updated: Apr 30, 2026

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Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction
Published on: October 13, 2017
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Minimum incision no skin suture external dacryocystorhinostomy
Mohsen Bahmani Kashkouli1, Mansooreh Jamshidian-Tehrani
1Eye Research Center, Ophthalmic Plastic and Reconstructive Unit, Rassoul Akram Hospital, Iran university of Medical Sciences, Tehran, Iran.
Ophthalmic Plastic and Reconstructive Surgery
|April 30, 2014
Summary
A minimally invasive 5-mm incision external dacryocystorhinostomy (Ext-DCR) without skin sutures achieves high success and patient satisfaction rates for nasolacrimal duct obstruction (NLDO). This technique offers excellent outcomes with minimal scarring.
Area of Science:
- Ophthalmology
- Oculoplastics
- Surgical Innovation
Background:
- Nasolacrimal duct obstruction (NLDO) significantly impacts quality of life.
- Traditional external dacryocystorhinostomy (Ext-DCR) can result in noticeable scarring.
- Minimally invasive surgical approaches are increasingly sought after in oculoplastics.
Purpose of the Study:
- To detail the technique of a 5-mm incision, no-skin-suture external dacryocystorhinostomy (Ext-DCR).
- To evaluate the functional and anatomical success rates of this minimally invasive Ext-DCR procedure.
- To assess patient satisfaction regarding the cosmetic outcome of the small incision.
Main Methods:
- Retrospective interventional case series of 77 patients (85 procedures) with NLDO.
- A standardized 5-mm skin incision was utilized for all external dacryocystorhinostomy (Ext-DCR) procedures.
- Silicone tube intubation was performed, with removal planned at 6 weeks; success defined by symptom resolution, free irrigation, and patient satisfaction scores.
Main Results:
- High anatomical (98.8%) and functional (95.3%) success rates were achieved in 85 procedures.
- Mean follow-up was 12.9 months; mean patient satisfaction score for incision appearance was 99.2.
- Canalicular stenosis was associated with significantly lower success rates (p=0.00), though wound elongation was minimal and did not require sutures.
Conclusions:
- The 5-mm incision, no-skin-suture external dacryocystorhinostomy (Ext-DCR) is a safe and effective procedure.
- This technique offers high success rates and excellent patient satisfaction, particularly regarding cosmetic results.
- It represents a valuable minimally invasive option for managing nasolacrimal duct obstruction (NLDO).

