Patent ID: 7828433

Claim:
Progressive lens for viewing a field of vision having at least a first portion including objects in a first range of distances from a viewer and a second portion including objects in a second range of distances from said viewer, the lens comprising: at least two different power zones, the first power zone having lens power required by said viewer for said first range of distances of viewed objects from said viewer, and the second power zone having lens power required by said viewer for said second range of distances of viewed objects from said viewer, wherein the size and location on the lens of said first power zone correspond to the size and location in said field of vision of said first portion, and wherein the size and location on the lens of said second power zone correspond to the size and location in said field of vision of said second portion, and wherein said first and said second power zones are distributed at least partially horizontally with respect to each other and in a manner which is asymmetrical with respect to a meridian line of the lens.