An improved tissue fastening device that can be inserted into (and optionally through) the tissue structure below the surface of the tissue and is the boundary of the incision in the eye tissue and other wounds Improvements often do not require access to the opposite surface behind the tissue structure, such as for juxtaposition and closure of tissue edges, and to attach overlapping tissue and tissue surfaces together, etc. Tissue fastening device. The first and second legs of the fastener may be configured to be advanced deeply into the tissue through the tissue surface. The base of the fastener can support the legs relative to each other. In some embodiments, the elongated anvil body may protrude distally and / or laterally from a fastener support disposed along the base. The anvil body may have an acute angle end and may be configured to penetrate tissue, wherein the elongated anvil body is optionally more distal than adjacent the clip support during at least a portion of the installation. From the above orientation to a more lateral orientation adjacent to the acute angle end described above. The first leg can be pressed into the anvil body socket through a desired location on the surface of the first tissue, thereby deforming the fastener and attaching it to the first tissue. The insertion of the anvil may be similar to the insertion of a curved suture needle, the anvil and the tissue engaging surface may be movable relative to the fastener support, and the tissue engaging surface may be Helps coordinate the distal movement and positioning of the anvil within the tissue, such as with an articulating instrument, thereby providing a leg penetration depth (and / or separation between the base and the tissue surface) and one or A correlation between the deformation of the plurality of legs can be maintained. In an exemplary embodiment, the adjustment is maintained by a brittle coupling device, whereby the first and second curved anvils associated with the first and
