Patent ID: 8206442
Filing Date: 2012-06-26
Classification: A61F,G02C

Abstract:
1. A lens device for the treatment of visual impairments and designed as a segment of a Fresnel lens and wherein a focal point is generated by the lens device comprising: an anterior side of the lens and a posterior side of the lens, a fixation element for fixing in the eye, a plurality of wedge-shaped recesses on the posterior side of the lens, and a superposition of spherical and non-spherical segments of one or more Fresnel lenses on the anterior side of the lens opposite the posterior side, wherein the plurality of wedge-shaped recesses include inclined areas, which redirect the focal point through the wedge-shaped recesses, the inclined areas are plane areas running linearly in a parallel direction to each other, the inclined areas and their plane areas running linearly in a parallel direction to each other extend along the entire posterior side of the lens device.