An ophthalmic lens 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. A first microstructure pattern formed in a the first surface region, the first microstructure pattern introducing a phase perturbation into an optical path of incoming light such that a full depth of focus for photopic vision is provided.

Embodiments disclosed herein are directed to intraocular lens systems having a plurality of materials therein, with at least some of the materials having a diffraction pattern therein and an electrically-modifiable index of refraction collectively configured to selectively alter an effective focal length of the intraocular lens system. Methods of modifying a focal length of an intraocular lens system are also disclosed.

A virtual aperture integrated into an intraocular lens is disclosed. Optical rays which intersect the virtual aperture are widely scattered across the retina causing the light to be virtually prevented from reaching detectable levels on the retina. The use of the virtual aperture helps remove monochromatic and chromatic aberrations yielding high-definition retinal images. For a given definition of acceptable vision, the depth of field is increased over a larger diameter optical zone. In addition, thinner intraocular lenses can be produced since the optical zone can have a smaller diameter. This in turn allows smaller corneal incisions and easier implantation surgery.

The present invention refers to an intraocular lens provided with specific diffractive profile, in which each step height is individually defined, with no fixed pattern. The intraocular lens provides a better control of the luminous efficiency of each focal point, guaranteeing more flexibility and customization, being adaptable to the optical quality that the patient needs.

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 method and system provide a multifocal ophthalmic device. The ophthalmic lens has an anterior surface, a posterior surface and at least one diffractive structure including a plurality of echelettes. The echelettes have at least one step height of at least one wavelength and not more than two wavelengths in optical path length. The diffractive structure(s) reside on at least one of the anterior surface and the posterior surface. The diffractive structure(s) provide a plurality of focal lengths for the ophthalmic lens.

An ophthalmic lens includes an optic comprising an anterior surface, a posterior surface, and an optical axis. At least one of the anterior surface and the posterior surface has a surface profile including a base curvature, a refractive region having the base curvature, and a diffractive region comprising a diffractive profile including a plurality of diffractive steps. At least a portion of the diffractive profile constitutes a combination of a base diffractive profile defining multiple foci for the ophthalmic lens and an achromatizing structure that reduces longitudinal chromatic aberrations.

Provided is an intraocular lens including a lens body having a back surface disposed on a retinal side and a front surface disposed on a corneal side, wherein an entire back surface is shaped in such a way as to protrude from a peripheral edge of the back surface toward the retinal side in a direction of an optical axis, in a shape of a truncated cone, and the front surface has any of the following shapes (i) to (iii); (i) the front surface is shaped in such a way as to start to be recessed toward the retinal side in the direction of the optical axis when viewed toward a center from a peripheral edge of the front surface, (ii) the front surface is shaped in such a way that an initial part from the peripheral edge of the front surface toward the center is flat, (iii) the front surface is shaped in such a way as to start to protrude toward the corneal side in the direction of the optical axis when viewed toward the center from the peripheral edge of the front surface, but a rate of rise of a protrusion from the peripheral edge of the front surface is smaller than a rate of rise of a protrusion from the peripheral edge of the back surface.

An intraocular lens that is capable of being inserted through a micro-incision includes an optic having an anterior and a posterior surface and a plurality of projections extending from the anterior and posterior surfaces. The anterior and posterior surfaces include a recess. The optic is implanted such that a rim of the capsulorhexis is disposed in the recess such that the plurality of projections grip the capsular bag.

An ophthalmic lens for providing enhanced vision includes a finished optic comprising a base optic and a membrane. The base optic has an anterior surface and an opposing posterior surface, at least one of the surfaces having a first value of a surface quality parameter. The base optic also includes a membrane including an inner surface and an outer surface, the inner surface covering one or more of the surfaces of the base optic. The outer surface has a second value of the surface quality parameter, wherein the second value is greater than the first value.