Ophthalmic lenses, including contact lenses may be enhanced through the incorporation of both active and passive electrical components. Electrical interconnects and die attachment configurations are required to ensure electrical connectivity between the components and the optic portion of the lens as well as providing a means for mounting planar devices on spherical surfaces. Electrical interconnects and die attachment for powered ophthalmic devices, including contact lenses includes realizing conductive traces on optical plastic, attaching planar dies to spherical surfaces and underfilling, overmolding and light blocking to complete the lens.