"Sutro Vision's first ophthalmic collection, featuring the newest version of the company's 3-Click Hinge, debuts.  This innovationve design addresses the weakest point in conventional eyewear construction: the hinge. The new hinge used for acetate frames has a revolutionary 3d lance design that anchors the hinge into the frames form all directions. Not only is the connection to the frame 10 times stronger than a heat-staked or rivited hinge, it also gives the frame surcture for a more consistent fit oover time with less adjustments needed."