Fig. 4. Repair of canalicular laceration with Silastic intubation. Canalicular sutures are placed on either side of the canaliculus and not through the lumen (A and B). The eyelid margin and skin are closed in standard fashion using interrupted sutures. The Silastic tubing is the Crawford variety (Jedmed Instrument Company, St. Louis, MO) and contains an indwelling suture that is tied to itself within the nares after exiting from the opening of the nasolacrimal duct beneath the inferior turbinate (C).