An ophthalmic lens, comprising an optic comprising an anterior surface, a posterior surface, and an optical axis, at least one of the anterior surface and the posterior surface having a surface profile including: a base curvature; a refractive region having the base curvature; a diffractive region comprising a diffractive profile comprising plurality of diffractive steps, at least a portion of the diffractive profile being a combination of: a base diffractive profile defining multiple foci for the ophthalmic lens; and an achromatizing structure that reduces longitudinal chromatic aberrations, wherein the surface profile is defined as follows: Sag achromatized _ multifocal = Sag r + g r; Sag r = Z base r 0 ≤ r ≤ r 1; Sag r = Z base r + F diffractive T + Δ 1 ′ r 1 < r ≤ r 1 ′; Sag r = Z ′ base r + F diffractive T + Δ 1 " r 1 ′ < r ≤ r 2 ′; Sag r = Z base r + F diffractive T + Δ 1 ′′′ r 2 ′ < r ≤ r 2; Sag r = Z base r + Δ 2 ′ r 2 < r ≤ r 3; g r = 0 0 ≤ r ≤ r 1 ′; g r = h × r 2 T g − ⌊ r 2 T g ⌋ r 1 ′ < r ≤ r 2 ′; g r = 0 r 2 ′ < r ≤ r 3; wherein Sag(r) defines the surface profile of the ophthalmic lens excluding the achromatizing structure; g(r) defines the achromatizing structure; r denotes a radial distance from the optical axis, Z base ( r) denotes the base curvature; Z' base ( r) denotes a modified base curvature that takes into account a focus shift caused by the achromatizing structure; F diffractive defines the base diffractive structure; T denotes the period in r 2 space for the base diffractive structure; r1, r2, r3, r1' and r2' denote junction points on the surface profile; Δ 1 ', Δ 1 ", Δ 1 ′′′, and Δ 2 ' are constants T g denotes a period in r 2 space of the achromatizing structure; └ ┘ denotes a floor function, wherein ⌊ x ⌋ = max m ∈ z | m ≤ x is the set of integers; and h denotes a step height. an optic comprising an anterior surface, a posterior surface, and an optical axis, at least one of the anterior surface and the posterior surface having a surface profile including: a base curvature; a refractive region having the base curvature; a diffractive region comprising a diffractive profile comprising plurality of diffractive steps, a base curvature; a refractive region having the base curvature; a diffractive region comprising a diffractive profile comprising plurality of diffractive steps, at least a portion of the diffractive profile being a combination of: a base diffractive profile defining multiple foci for the ophthalmic lens; and an achromatizing structure that reduces longitudinal chromatic aberrations, a base diffractive profile defining multiple foci for the ophthalmic lens; and an achromatizing structure that reduces longitudinal chromatic aberrations, wherein the surface profile is defined as follows: Sag achromatized _ multifocal = Sag r + g r; Sag r = Z base r 0 ≤ r ≤ r 1; Sag r = Z base r + F diffractive T + Δ 1 ′ r 1 < r ≤ r 1 ′; Sag r = Z ′ base r + F diffractive T + Δ 1 " r 1 ′ < r ≤ r 2 ′; Sag r = Z base r + F diffractive T + Δ 1 ′′′ r 2 ′ < r ≤ r 2; Sag r = Z base r + Δ 2 ′ r 2 < r ≤ r 3; g r = 0 0 ≤ r ≤ r 1 ′; g r = h × r 2 T g − ⌊ r 2 T g ⌋ r 1 ′ < r ≤ r 2 ′; g r = 0 r 2 ′ < r ≤ r 3; wherein Sag(r) defines the surface profile of the ophthalmic lens excluding the achromatizing structure; g(r) defines the achromatizing structure; r denotes a radial distance from the optical axis, Z base ( r) denotes the base curvature; Z' base ( r) denotes a modified base curvature that takes into account a focus shift caused by the achromatizing structure; F diffractive defines the base diffractive structure; T denotes the period in r 2 space for the base diffractive structure; r1, r2, r3, r1' and r2' denote junction points on the surface profile; Δ 1 ', Δ 1 ", Δ 1 ′′′, and Δ 2 ' are constants T g denotes a period in r 2 space of the achromatizing structure; └ ┘ denotes a floor function, wherein ⌊ x ⌋ = max m ∈ z | m ≤ x is the set of integers; and h denotes a step height. Sag(r) defines the surface profile of the ophthalmic lens excluding the achromatizing structure; g(r) defines the achromatizing structure; r denotes a radial distance from the optical axis, Z base ( r) denotes the base curvature; Z' base ( r) denotes a modified base curvature that takes into account a focus shift caused by the achromatizing structure; F diffractive defines the base diffractive structure; T denotes the period in r 2 space for the base diffractive structure; r1, r2, r3, r1' and r2' denote junction points on the surface profile; Δ 1 ', Δ 1 ", Δ 1 ′′′, and Δ 2 ' are constants T g denotes a period in r 2 space of the achromatizing structure; └ ┘ denotes a floor function, wherein ⌊ x ⌋ = max m ∈ z | m ≤ x is the set of integers; and h denotes a step height.