Objectives
To create a replacement nasolacrimal system, using the puncta and canaliculi, with prolonged implant retention and minimal use of Elizabethan collars or other restraint devices.
Materials and Methods
The method was used in 11 dogs and two cats. Silicone tubing was placed through both canaliculi and, via a drill hole, into the nasal cavity. Distally, the tubing ends were tied in a subcutaneous pocket lateral to the premaxilla. Tubing retention time was 4 to 7 months. Elizabethan collars were used only until skin suture removal at 2 weeks.
Results
In all animals, a functional nasolacrimal system was re‐created and remained patent over prolonged follow‐up periods. Adverse effects and complications were mild.
Clinical significance
The described method is relatively straightforward, thereby making relief of tear outflow problems widely accessible.