Related Experiment Video
Updated: Jun 16, 2025

Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction
Published on: October 13, 2017
Pediatric dacryolith masquerading as congenital nasolacrimal duct obstruction
Upasana Pokal1, Ashish Ranjan1, Mohammad Javed Ali1
1Govindram Seksaria Institute of Dacryology, L.V. Prasad Eye Institute, Hyderabad, 34, India.
Purpose:
To report a rare case of a pediatric dacryolith masquerading as congenital nasolacrimal duct obstruction (CNLDO).
Observations:
A two-year-old male child presented with history of intermittent epiphora and discharge since the age of six months. Clinical evaluation demonstrated raised tear meniscus height and delayed fluorescein dye disappearance test in the right eye. Lacrimal irrigation of the right eye under general anesthesia demonstrated 90 % regurgitation (subjectively) of mucoid fluid with a hard stop. Nasal endoscopy examination demonstrated a dacryolith obstructing the opening of the nasolacrimal duct (NLD) in the inferior meatus. The dacryolith was teased out of the NLD and following its removal the lacrimal irrigation was freely patent. At six-months post operative follow up, epiphora resolved and the child was asymptomatic.
Conclusions And Importance:
While cases of canaliculitis is uncommon in pediatric age group, it is rare to find a NLD dacryolith in a toddler. To the best of the authors' knowledge, there are few prior reports on pediatric NLD dacryolith masquerading as CNLDO in a toddler (1-3 years).
More Related Videos
Related Concept Videos
Suctioning the Nasopharyngeal Airway
Equipment Required
Renal Tubule and Collecting Duct
Proximal Convoluted Tubule (PCT):
The PCT is the initial segment of the renal tubule, extending from the Bowman's capsule that encloses the glomerulus. Its convoluted structure and microvilli-lined cells increase the surface area for reabsorption. The PCT reabsorbs glucose, amino acids, sodium, and water from the filtrate, ensuring essential...
Glaucoma: Overview

