or stent may be inserted into the opening to prevent closure the intubation tube can be inserted through the introducer to avoid further traumatic reinsertion of instruments thus again simplifying the procedure and reducing trauma the outside tube of the introducer is of sufficient diameter to accommodate many devices and methods for intubation a preferred method of the present invention is performed as follows the dcr introducer is inserted through the lower or upper punctum and the lower or upper canaliculus to reach the lachrymal sac section or duct the atraumatic inner part of the introducer is then removed and an optical fiber inserted through the introducer itself so that the distal end of the fiber is advanced beyond the distal end of the introducer tube a laser aiming beam can then be activated to check proper introducer position when the optical fiber is properly positioned laser energy is applied to achieve an opening between the nasolachrymal duct and medium meatus which allows the introducer to be moved into a position visible through the nasal cavity the laser fiber is then removed the introducer is advanced through the opening and the dcr intubation set is inserted through the introducer and placed within the lachrymal ways 0039 fig2 illustrates a preferred embodiment of the dcr introducer outer tube 201 which is of a sufficiently small diameter to be.