Related Experiment Video
Updated: Dec 15, 2025

Nasolacrimal Lavage as a Treatment for Ocular Surface Toxic Soup Syndrome
Published on: April 25, 2025
Outcomes and comparison of nasolacrimal probing for patients older than 12 months
Kürsad Ramazan Zor1, Erkut Küçük1, Zeynep Yılmaz Öztorun2
1Assistant Professor, Department of Ophthalmology, Ömer Halisdemir University Training and Research Hospital, Niğde, Turkey.
Insights
Probing is a highly effective treatment for congenital nasolacrimal duct obstruction in children aged 12-84 months. This procedure remains a successful first-choice option even for older children and those with prior unsuccessful treatments.
Area of Science:
- Ophthalmology
- Pediatric Surgery
Background:
- Congenital nasolacrimal duct obstruction (CNLDO) is a common condition in infants.
- Early intervention is typically recommended, but the efficacy of probing in older children requires further investigation.
Purpose of the Study:
- To evaluate the success rates of probing for CNLDO across different age groups.
- To specifically assess the role and effectiveness of late probing in children over 24 and 48 months of age.
Main Methods:
- Retrospective analysis of patient records from 2013-2017.
- Inclusion of patients who underwent probing under general anesthesia for CNLDO.
- Comparison of probing success rates across various age cohorts.
Main Results:
- An overall success rate of 93.7% was observed in 143 eyes.
- Success rates were high across age groups: 95.5% (12-18 months), 93.3% (18-24 months), 93.8% (24-48 months), and 86.6% (≥48 months).
- For patients older than 48 months, the success rate after a second probing was 100%.
Conclusions:
- Probing demonstrates high efficacy for CNLDO in children aged 12 to 84 months.
- Probing is an effective first-line treatment for CNLDO in children over 48 months.
- Probing can be successfully employed even in older children with a history of failed initial probing.
Objective:
In this study, we report the results of probing done in our clinic. We also want investigate role of late probing on outcome, especially in children older than 24 and 48 months.
Methods:
We retrospectively evaluated records of patients who underwent probing under general anaesthesia due to congenital nasolacrimal duct obstruction between 2013 and 2017 in Nigde Ömer Halisdemir University Faculty of Medicine in Nigde, Turkey. Success rates of probing for different age groups were compared.
Results:
143 eyes of 123 patients were included in the study. Overall success rate was 93.7% (134 eyes out of 143). We found the success rate as 95.5 in 12-18 months age group, 93.3% in 18-24 months age group, 93.8% in the 24-48 months age group, 86.6% in the 48 months and older age group. Overall success rate in 24 months and older age group was 91.5%. The second operation was performed on seven of the nine patients where the initial surgery failed, and successful results were achieved in six patients. Success rate was 100% after the second surgery in patients older than 48 months.
Conclusion:
The success rate of probing is high in patients with congenital nasolacrimal duct obstruction from 12 to 84 months. In patients with congenital nasolacrimal duct obstruction who are older than 48 months probing is effective and should be first-choice in this age group in management of congenital nasolacrimal duct obstruction. Probing may be used even in older patients who had previous unsuccessful probing.
More Related Videos
07:30Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction
Published on: October 13, 2017
08:04A Rabbit Model of Aqueous-Deficient Dry Eye Disease Induced by Concanavalin A Injection into the Lacrimal Glands: Application to Drug Efficacy Studies
Published on: January 24, 2020