LIMITED ECHELETTE LENS, SYSTEMS AND METHODS

摘要

Systems and methods for providing enhanced image quality across a wide and extended range of foci encompass vision treatment techniques and ophthalmic lenses such as contact lenses and intraocular lenses (IOLs). Exemplary IOL optics can include a circular surface structure (210) with limited adjacent echelettes (230) which act as a diffractive or phase shifting profile.