Intraocular lens insertion system with guide rails

An insertion system to insert an intraocular lens (IOL) in a patient's eye comprising:

• a pusher comprising a shaft;
• an introducer device comprising:
• a back sheath having a longitudinally extending lumen sized and configured to slideably receive the shaft of the pusher;
• a tapering front sheath having a proximal portion, an intermediate portion, and a distal portion and comprising:
• a receptacle located at the proximal portion sized and configured to receive the IOL;
• inner peripheral guide rails beginning at a proximal end and terminating at a distal end and located at the intermediate portion of the front sheath in fluid communication with the receptacle, the inner peripheral guide rails having an arcuate configuration and comprising a first member separated by an inner lumen from a second opposing member, the first and second member extending further into the inner lumen at the proximal end compared to the distal end of the inner peripheral rails;
• and
• a distal tip lacking in fluid communication with the distal end of the inner peripheral guide rails.