PMC3745102_01
(a) Diagrammatic representation of the bicanalicular retrograde intubation dacryocystorhinostomy technique. (b) The direction of the silicon tube through the common internal opening into the canaliculi
IJPS-46-138-g001.jpg
PMC3745102_01_IJPS-46-138-g001.jpg
F1
The tip of probe was palpable near the eyelid margin, distal to the obstruction, and a no. 15 Bard Parker's blade was used to cut down onto the probe tip, thereby creating pseudopunctum [Figure 1a]. Silicone intubation was performed through common ostium, out through the lower pseudopunctum and returned through the upper pseudopunctum down through common ostium into the nose [Figure 1b].