Extended depth of focus (EDOF) lens to increase pseudo-accommodation by utilizing pupil dynamics

A monofocal intraocular lens, comprising:

• an optic having an anterior surface and a posterior surface disposed about an optical axis, at least one of said surfaces being toric and at least one of said surfaces comprising:
• at least one inner refractive region having a nominal optical power,
• at least one outer refractive region having the nominal optical power, and
• a refractive transition region disposed between said inner and outer regions, said transition region extending from an inner radial boundary to an outer radial boundary thereof,
• wherein said transition region is adapted such that a phase of radiation incident thereon varies linearly over at least a portion of the radial extent between said inner to said outer boundary so as to generate a phase shift between said outer and inner boundaries characterized by a selected non-integer fraction of a design wavelength in the visible spectrum such that a first portion of an incoming wavefront in the inner refractive region and a second portion of the incoming wavefront in the outer refractive region converge to produce an effective optical power different from the nominal optical power thereby creating a depth of focus.