Avulsion of the canalicular system.

Avulsion of the common canaliculus from its attachment to the lacrimal sac should be suspected in cases involving either deep lacerations on the lateral side of the nose or traumatic telecanthus in midfacial trauma. Blunting of the canalicular angle and rounding of the inner canthus are confirming signs. A canaliculodacryocystorhinostomy can be performed to reanastomize the lacrimal drainage pathways and relieve epiphora.