An ocular implant system for reducing intraocular pressure in an eye, comprising: an ocular implant comprising a proximal implant end, a distal implant end, and an internal lumen having a proximal lumen end, a distal lumen end, the ocular implant having a circular cross-sectional shape, wherein the ocular implant is adapted for deployment in the eye such that the distal lumen end is in fluid communication with the suprachoroidal space and the proximal lumen end is in fluid communication with the anterior chamber when the ocular implant is in a deployed location such that the internal lumen provides a fluid passageway for draining aqueous humor from the anterior chamber towards the suprachoroidal space; a delivery instrument comprising a hand-held component operatively coupled to an elongated applier, wherein the elongated applier is adapted for deployment of the ocular implant into the deployed location in the eye by inserting the ocular implant _through the anterior chamber of the eye, and through a dissected tissue plane between the ciliary body and the sclera at a location proximate the scleral spur into the deployed location, characterized in that: the ocular implant is characterized for deployment through a self-sealing corneal incision, and the elongated applier having a diameter and cross-sectional shape configured to be inserted through the internal lumen of the ocular implant such that the elongated applier is removably coupled to the ocular implant, and such that a distal end of the applier extends beyond the distal implant end and the elongated applier is adapted for insertion of the ocular implant through the self-sealing corneal incision into the anterior chamber of the eye. an ocular implant comprising a proximal implant end, a distal implant end, and an internal lumen having a proximal lumen end, a distal lumen end, the ocular implant having a circular cross-sectional shape, wherein the ocular implant is adapted for deployment in the eye such that the distal lumen end is in fluid communication with the suprachoroidal space and the proximal lumen end is in fluid communication with the anterior chamber when the ocular implant is in a deployed location such that the internal lumen provides a fluid passageway for draining aqueous humor from the anterior chamber towards the suprachoroidal space; a delivery instrument comprising a hand-held component operatively coupled to an elongated applier, wherein the elongated applier is adapted for deployment of the ocular implant into the deployed location in the eye by inserting the ocular implant _through the anterior chamber of the eye, and through a dissected tissue plane between the ciliary body and the sclera at a location proximate the scleral spur into the deployed location, the ocular implant is characterized for deployment through a self-sealing corneal incision, and the elongated applier having a diameter and cross-sectional shape configured to be inserted through the internal lumen of the ocular implant such that the elongated applier is removably coupled to the ocular implant, and such that a distal end of the applier extends beyond the distal implant end and the elongated applier is adapted for insertion of the ocular implant through the self-sealing corneal incision into the anterior chamber of the eye.