US Patent 7118547 Glaucoma drain

A glaucoma drain for non-penetrating deep sclerotorny is made of non-resorbable and hydrophilic synthetic material. The drain is configured to be entirely covered by the scleral flap and totally inserted in the intrascleral space. It comprises a transverse bar (110) at one front end of the drain and a longitudinal body (120) extending longitudinally from said transverse bar. The transverse bar (110, 10) is configured to run along and cover the Schlemm's canal (CS) and the opposite ends are configured to penetrate beneath the deep sclera inside the Sclernm's canal. A hole (125) between the arms of the bar provides a target for possible YAG laser micro-punctures.