Abstract: 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.

Abstract: Apparatuses, systems and methods for providing improved ophthalmic lenses, particularly intraocular lenses (IOLs), include features for reducing dysphotopsia effects, such as haloes and glare. Exemplary ophthalmic lenses can include an optic including a diffractive achromat configured to direct light to a common focus, with individual zones of the diffractive achromat directing light to the common focus in at least two different diffractive orders utilizing at least two different diffractive powers.

Abstract: Apparatuses, systems, and methods for providing improved intraocular lenses (IOLs) and other refractive treatment modalities involve fabricating the IOL or developing the treatment based on a refractive profile. Exemplary techniques include obtaining a base wavefront power profile corresponding to a theoretical lens, adding a second wavefront profile defined by the combination of one or more zones described by a cosine function to obtain a final wavefront power profile, determining a refractive profile based on the final wavefront power profile, and fabricating the intraocular lens or determining the treatment based on the refractive profile.

Abstract: 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.

Abstract: A psychophysical method, system, and apparatuses to characterize visual symptoms. A method may include presenting one or more stimuli to a patient indicating one or more visual symptoms. The patient may produce one or more responses to the stimuli. A determination of a measure of visual symptoms of the patient may be made utilizing a Bayesian method based on the responses.

Abstract: Apparatuses, systems and methods for providing improved ophthalmic lenses, particularly intraocular lenses (IOLs), include features for reducing dysphotopsia effects, such as haloes and glare, in extended range of vision lenses. Exemplary ophthalmic lenses can include an optic including a first surface and a second surface each disposed about an optical axis and extending radially outward from the optical axis to an outer periphery of the optic. A diffractive profile including a plurality of echelettes is disposed on the first surface such that no echelette on the first surface repeats between the optical axis and the outer periphery of the optic.

Abstract: 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 an aspheric refractive profile imposed on a first or second lens surface, and a diffractive profile imposed on a first or second lens surface. The aspheric refractive profile can focus light toward a far focus. The diffractive profile can include a central zone that distributes a first percentage of light toward a far focus and a second percentage of light toward an intermediate focus. The diffractive profile can also include a peripheral zone, surrounding the central zone, which distributes a third percentage of light toward the far focus and a fourth percentage of light toward the intermediate focus.

Abstract: Systems and methods for evaluating ND are described herein. An example method can include constructing a non-sequential (NSC) ray-tracing model of an eye with an ophthalmic lens, and modelling a light source and a detector. The detector can be configured to mimic a retina of the eye. The method can also include computing irradiance data using the light source, the NSC ray-tracing model, and the detector. Irradiance data can be computed for each of a plurality of pupil sizes. The method can further include evaluating ND by analyzing the respective irradiance data for each of the pupil sizes. Also described herein are methods for designing an ophthalmic lens edge that reduces the incidence of ND for a given ophthalmic lens by adjusting the edge thickness and/or the scatter.

Abstract: 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.

Abstract: Apparatuses, systems and methods for providing improved ophthalmic lenses, particularly intraocular lenses (IOLs), include features for reducing dysphotopsia effects, such as haloes and glare. Exemplary ophthalmic lenses can include an optic having a central region disposed about an optical axis and a peripheral region extending outward from the central region, with a diffractive achromat positioned on the peripheral region, and the central region lacking an achromat, and a base power for distance of the central region being the same as a base power for distance of the peripheral region.

Abstract: A method of forming a mold insert used to produce an intraocular lens (IOL) mold is disclosed herein. The method includes providing stock material and cutting the stock material, which includes multiple cutting steps. The cutting steps are performed on transitional regions of supporting portions of the mold insert. Peripheral surfaces of the mold insert have varying roughness values, and supporting portions of the mold insert have a greater roughness than the optical portion of the mold insert. An IOL is also disclosed herein that is formed using an IOL mold that is injection molded using the mold insert. A method of forming the IOL is also disclosed herein.

Abstract: Systems and methods for improving vision of a subject implanted with an intraocular lens (IOL). In some embodiments, a method includes determining at least one modification to be made to an IOL implanted in a subject to improve the vision of the subject, wherein the IOL has a first index of refraction; and based on the determination, applying laser radiation to at least one selected area of the IOL to form, within the IOL, at least one additional layer having a different index of refraction than the first index of refraction and a particular shape within the IOL configured to improve the vision of the subject.

Abstract: Systems and methods for improving vision of a subject implanted with an intraocular lens (IOL). In some embodiments, a method for vergence matching includes calculating vergence of a wave after refraction on a surface of an IOL and, based on an estimated curvature, converting an initial phase map into a vergence-matched phase map, such that the initial phase map follows the curved vergence of the wavefront.

Abstract: Apparatuses, systems and methods for providing improved ophthalmic lenses, particularly intraocular lenses (IOLs), include features for reducing dysphotopsia effects, such as straylight, haloes and glare, in diffractive lenses. Exemplary ophthalmic lenses can include a diffractive profile that distributes light among a near focal length, a far focal length, and one or more intermediate focal length. The diffractive profile provides for minimized or zero step heights between one or more pairs of diffractive zones for reducing visual artifacts.

Abstract: Apparatuses, systems and methods for providing improved ophthalmic lenses, particularly intraocular lenses (IOLs), include features for vertex matching distance regions of such lenses. Exemplary ophthalmic lenses can include an optic disposed about an optical axis and having a refractive profile including a region having an add power and a first distance region and a second distance region extending outward from the first distance region and being vertex matched with the first distance region.

Abstract: The present disclosure relates to devices, systems, and methods for improving or optimizing peripheral vision. In particular, various IOL designs, as well as IOL implantation locations, are disclosed which improve or optimize peripheral vision.

Abstract: A Bayesian model for predicting spectacle independence of one or more IOLs based on pre-clinical data (e.g., visual acuity value for one or more defocus values) of an IOL. The Bayesian model is trained to assign appropriate weights for different combinations of defocus values.

Abstract: Apparatuses, systems and methods for providing improved ophthalmic lenses, particularly intraocular lenses (IOLs), include features for providing improved extended depth of focus lenses. Exemplary ophthalmic lenses can include an optic including a diffractive profile including at least one set of echelettes, each echelette of the set having a different width in r-squared space than any other echelette of the set and the at least one set of echelettes repeating at least once upon the optic.

Abstract: Apparatuses, systems and methods for providing improved ophthalmic lenses, particularly intraocular lenses (IOLs), include features for reducing dysphotopsia effects, such as haloes and glare. Exemplary ophthalmic lenses can include an optic including a diffractive achromat configured to direct light to a common focus, with individual zones of the diffractive achromat directing light to the common focus in at least two different diffractive orders utilizing at least two different diffractive powers.

Abstract: Intraocular lenses with a base optical power and a customized add power. The add power is customized based on at least one of ocular biometry of an individual, position of the intraocular lens in the eye and a preferred reading distance.