A spectacle ophthalmic lens having a front surface and a back surface, the spectacle ophthalmic lens including a nasal lateral zone and a temporal lateral zone, wherein the front surface includes a progressive or regressive front surface which provides at least a magnifying function in the nasal and/or the temporal lateral zone of the lens, and wherein the back surface substantially compensates dioptric effects of the magnifying function of the progressive or regressive front surface.

Apparatuses, systems and methods for providing improved intraocular lenses (IOLs), include features for reducing side effects, such as halos, glare and best focus shifts, in multifocal refractive lenses and extended depth of focus lenses. Exemplary ophthalmic lenses can include a continuous, power progressive aspheric surface based on two or more merged optical zones, the aspheric surface being defined by a single aspheric equation. Continuous power progressive intraocular lenses can mitigate optical side effects that typically result from abrupt optical steps. Aspheric power progressive and aspheric extended depth of focus lenses can be combined with diffractive lens profiles to further enhance visual performance while minimizing dysphotopsia effects. The combination can provide an increased depth of focus that is greater than an individual depth of focus of either the refractive profile or the diffractive profile.

A product includes a progressive power spectacle lens or a representation, stored on a data storage medium, of the progressive power spectacle lens. The progressive power spectacle lens has a front surface and a back surface and a spatially varying refractive index, wherein the front surface and/or the back surface is embodied as a progressive surface. The front surface is formed as a free-form surface in such a way that the maximum of the absolute value of the mean curvature of the front surface lies in the intermediate corridor and/or the back surface is formed as a free-form surface in such a way that the minimum of the absolute value of the mean curvature of the back surface lies in the intermediate corridor. Further, a computer-implemented method for planning a progressive power spectacle lens with a spatially varying refractive index and a progressive surface is disclosed.

A progressive spectacle lens has a front face and a rear face and a uniform substrate with a locally varying refractive index. The front face and/or the rear face of the substrate is formed as a free-form surface and carries only functional coatings, if any. The refractive index varies (a) only in a first spatial dimension and in a second spatial dimension and is constant in a third spatial dimension, a distribution of the refractive being neither point-symmetrical nor axis symmetrical, or (b) in a first spatial dimension and in a second spatial dimension and in a third spatial dimension, a distribution of the refractive index being neither point-symmetrical nor axis symmetrical, or (c) in a first spatial dimension and in a second spatial dimension and in a third spatial dimension, a distribution of the refractive index not being point-symmetrical or axis symmetrical at all.

Apparatuses, systems and methods for providing improved intraocular lenses (IOLs), include features for reducing side effects, such as halos, glare and best focus shifts, in multifocal refractive lenses and extended depth of focus lenses. Exemplary ophthalmic lenses can include a continuous, power progressive aspheric surface based on two or more merged optical zones, the aspheric surface being defined by a single aspheric equation. Continuous power progressive intraocular lenses can mitigate optical side effects that typically result from abrupt optical steps. Aspheric power progressive and aspheric extended depth of focus lenses can be combined with diffractive lens profiles to further enhance visual performance while minimizing dysphotopsia effects. The combination can provide an increased depth of focus that is greater than an individual depth of focus of either the refractive profile or the diffractive profile.

A progressive power lens pair is provided with an object-side surface and an eyeball-side surface of the right-eye lens and an object-side surface and an eyeball-side surface of the left-eye lens which are set by ensuring that ADDR1ADDR2 and ADDL1ADDL2 take values different from each other, when prescribed additional power for the right-eye lens and prescribed additional power for the left-eye lens are equal to each other; and prescription information for the progressive power lens pair indicates: that spherical power SR at the right-eye lens and spherical power SL at the left-eye lens are different from each other, that astigmatic power CR at the right-eye lens and astigmatic power CL at the left-eye lens are different from each other, or that an astigmatism axis angle AxR corresponding to the right-eye lens and an astigmatism axis angle AxL corresponding to the left-eye lens are different from each other.

A lens design method includes: changing curve data including a curve value of a distance vision part and a curve value of a near vision part of a progressive power lens on an object side and a curve value of a distance vision part and a curve value of a near vision part of the progressive power lens on an eyeball side so as to be suited to prescription values to calculate a plurality of sets of the curve data; and calculating, for each of the calculated sets of the curve data, a thickness at a second position on the progressive power lens that satisfies thickness conditions for a first position on the progressive power lens.

Methods of designing at least one progressive ophthalmic lens for a user having a dominant eye and a non-dominant eye are provided. These methods include determining a first inset for a lens for the dominant eye, and determining a measurement of phoria of the user. The methods further include determining a second inset for a lens for the non-dominant eye depending on the first inset and on the measurement of phoria, and designing the lens for the non-dominant eye according to the second inset. Systems, computer systems and computer program products suitable for performing these design methods are also provided. Progressive ophthalmic lenses designed according to said design methods are also provided.

A method of manufacturing an ophthalmic lens comprising: an ophthalmic lens data providing step (S1) during which ophthalmic lens data corresponding are provided, a semi-finished lens blank providing step (S2) during which a semi-finished lens blank is provided, a transfer function determining step (S3) during which the transfer function to be applied to the first optical surface of the ophthalmic lens so as to correspond to the first lens blank surface is determined, an one side lens data calculating step (S4) during which one side lens having second surface that corresponds to the second optical surface calculated by applying the transfer function, a machining step (S5) during which the semi-finished lens blank is machined according to the one side lens data, a deforming step (S6) during which the machined semi-finished lens blank is deformed so as to obtain the ophthalmic lens.

A series of spectacle lenses is disclosed, wherein each lens has a spherical front surface and an aspheric, atoric, or freeform back surface. Further, each lens of the series provides a focal power P.sub.x between 6 D and +4 D; and at least one lens of the series provides a focal power P.sub.x between at least one of (a) 0.75 D and +2.25 D and (b) 0.5 D and +2.00 D. For an upper range of focal powers, lenses having the same nominal front surface power are provided; and for a lower range of trough powers, lenses having the same minimum nominal back surface power are provided. The spherical front surface has a nominal front surface power P.sub.f and the back surface has a minimum nominal back surface power P.sub.b; wherein 15.5 D|P.sub.f|+|P.sub.b|+|P.sub.x|31.5 D applies for each spectacle lens of the series.