An intracanalicular plug inserter device, comprising: (a) an elongate body having a longitudinal axis, the body having: an inserter end, the inserter end including an inserter tip which has an opening therein; and a distal end, the distal end longitudinally opposing the inserter end; (b) a plug ejector, wherein the plug ejector comprises: a slider and an ejector means, wherein the slider has a first end and a second end and the slider is configured to be flexed and is mounted within a longitudinal groove of the body, and the slider having a first arm and a second arm which are configured to flex toward a midline of the slider when the plug ejector is inserted into the body during the assembly of the plug inserter device and to flex back to their original position once the slider is inserted within the body, wherein the first and second arm (210A, 210B) are coupled together at the second end of the slider; a rod coupled to the second_end of the slider; and a depressible button having a first side protruding outside of the body and a second side mounted to the first arm of the slider, and wherein the second side of the button comprises a pair of legs which are clipped to the first arm of the slider (c) a plug mounted on the inserter tip, wherein the inserter tip is configured to firmly retain the plug, and wherein the plug is configured for insertion into the canaliculus in the eye, wherein the rod is configured to eject the plug from the opening in the inserter end when the first end of the slider is moved toward the inserter end, wherein the plug ejector is configured to be moveable between a first position adjacent the opening in the inserter end and a second position that is further from the opening. (a) an elongate body having a longitudinal axis, the body having: an inserter end, the inserter end including an inserter tip which has an opening therein; and a distal end, the distal end longitudinally opposing the inserter end; an inserter end, the inserter end including an inserter tip which has an opening therein; and a distal end, the distal end longitudinally opposing the inserter end; (b) a plug ejector, wherein the plug ejector comprises: a slider and an ejector means, wherein the slider has a first end and a second end and the slider is configured to be flexed and is mounted within a longitudinal groove of the body, and the slider having a first arm and a second arm which are configured to flex toward a midline of the slider when the plug ejector is inserted into the body during the assembly of the plug inserter device and to flex back to their original position once the slider is inserted within the body, wherein the first and second arm (210A, 210B) are coupled together at the second end of the slider; a rod coupled to the second_end of the slider; and a depressible button having a first side protruding outside of the body and a second side mounted to the first arm of the slider, and wherein the second side of the button comprises a pair of legs which are clipped to the first arm of the slider a slider and an ejector means, wherein the slider has a first end and a second end and the slider is configured to be flexed and is mounted within a longitudinal groove of the body, and the slider having a first arm and a second arm which are configured to flex toward a midline of the slider when the plug ejector is inserted into the body during the assembly of the plug inserter device and to flex back to their original position once the slider is inserted within the body, wherein the first and second arm (210A, 210B) are coupled together at the second end of the slider; a rod coupled to the second_end of the slider; and a depressible button having a first side protruding outside of the body and a second side mounted to the first arm of the slider, and wherein the second side of the button comprises a pair of legs which are clipped to the first arm of the slider (c) a plug mounted on the inserter tip, wherein the inserter tip is configured to firmly retain the plug, and wherein the plug is configured for insertion into the canaliculus in the eye, wherein the rod is configured to eject the plug from the opening in the inserter end when the first end of the slider is moved toward the inserter end, wherein the plug ejector is configured to be moveable between a first position adjacent the opening in the inserter end and a second position that is further from the opening.