Monocanalicular lacrimonasal intubation

Area of Science:

• Ophthalmology
• Pediatric Surgery
• Anatomy

Background:

• Congenital nasolacrimal duct obstruction affects tear drainage in infants.
• Upper canalicular abnormalities pose challenges for traditional intubation techniques.
• Bicanaliculonasal intubation is often hindered by complex lacrimal system anomalies.

Observation:

• A silicone tube was inserted via the lower canaliculus into the nasal fossa.
• The tube traversed the entire lacrimal drainage system.
• Distal ends were routed through the nasal septum and secured bilaterally.

Findings:

• The new technique achieved successful lacrimal drainage in all six cases.
• Silicone tubes remained patent for the required duration.
• Postoperative tube removal was straightforward, resulting in permanent patency.

Implications:

• This procedure offers a viable alternative for treating complex pediatric lacrimal obstructions.
• It addresses limitations of previous methods, particularly with upper canalicular involvement.
• Successful outcomes suggest improved long-term tear duct function in affected children.