CPC A61F 2/1618 (2013.01) [A61F 2/1621 (2013.01); A61F 2/1654 (2013.01); A61F 2002/1683 (2013.01)] | 5 Claims |
1. An intraocular lens (IOL) comprising:
an anterior surface and a posterior surface, at least one of the anterior surface and posterior surface including a first surface region corresponding to a photopic aperture of a pupil and a second surface region corresponding to a difference between the photopic aperture and a mesopic aperture of the pupil; and
a first microstructure pattern formed in the first surface region, the first microstructure pattern comprising a plurality of structures having non-repetitive and non-gradual step heights for introducing a phase perturbation into an optical path of incoming light such that a continuous full depth of focus for photopic vision is provided,
wherein the first microstructure pattern is defined by a step pattern.
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