Abstract: The present description refers to a series of progressive lenses, wherein the lenses present a different surface power in the distance-vision part and/or a different increase of the surface power from the distance-vision part towards the near-vision part (termed addition Add hereinafter), and whereof eachcomprises a front surface having a continuously varying surface power which increases from the respective value BK ?dpt!, which is suitable for distance vision, at the point having the coordinates x=0 mm, y=8 mm in the lower region of the distance-vision part along a wound line (primary line), which coincides approximately with the primary line of view, with eyes dropped, towards a value suitable for near vision in the upper region of the near-vision part, which value is greater than the value of the surface power BK in the lower region of the distance-vision part by the value ADD ?dpt! of the addition, andhaving a surface, in particular the surface on the concave side, which has a spherical shape or an asphe

Abstract: An ophthalmic lens having a front and an eye-facing boundary surface and a varying refractive index, which contributes to the correction of aberrations. The ophthalmic lens is distinguished by having at least one system of surfaces at given level (n(x,y,z)=const.) with a constant refractive index, which are spaced the same distance at all points in the direction of their surface normals (parallel surfaces), and which, respectively their extension, intersect the axis connecting the lens apexes of the front surface and the eye-facing surface.

Abstract: An ophthalmic lens for use in the correction of astigmation, wherein in order to reduce the critical thickness and/or the variation of the edge thickness along the circumference of the lens, the refractive index changes at least along the critical main section in such a manner that at least part of the cylindrical correction is attained by the refractive index variation.

Abstract: A progressive ophthalmic lens comprising a distance portion, the refractive power of which being designed for distance vision, a reading portion, the refractive power of which being designed for near vision, and an intermediate portion, in which the refractive power along the main line of vision at least partially increases continuously from the refractive power of the distance portion to the reading portion. A refractive index of the lens material varies along the main line of vision at least in the intermediate portion so as to at least partially contribute to the increase in refractive power and correction of aberrations.