The J-Curve for Navigating the Nasolacrimal Outflow Tract.

Purpose: To describe the technique of J-shaped manipulation of the metallic stent for instrument-free intubation of the nasolacrimal outflow tract after dacryocystorhinostomy.

Methods: The internal diameter of the J-shaped curve placed in the intubation stents was measured and the technique of intubation of the nasolacrimal outflow tract and out the external naris is described. In addition, the anatomic relationships of the nasolacrimal system are illustrated and videographed in relation to the described procedure.