An apparatus is provided for forming a tissue tract (8, 11 A, 17A) from within a first passageway of an eye (11, 17) connecting to a second passageway in the eye (12, 16) comprising an elongated tool with a proximal end and distal end. The tool has an outer diameter in the range of about 50 to about 1000 microns. Methods of using the tool are provided for creating a fluid path for aqueous humor of an eye from a first passageway of the eye, such as the Schlemm's Canal, to a second passageway, such as the suprachoroidal space.
