Disclosed are lenses and methods for verifying a lens with an induced aperture. The lenses can have a geometry that, among other things, maintains a centered position about a wearer's eye to prevent more than a permissible amount of movement of the lens relative to the eye. Further disclosed is a method for verifying the power profiles used with the lens, and a lens that can have a single power profile for a wide range of presbyopia.

According to some embodiments, a transparent screen includes a first transparent substrate having a first transparent substrate index of refraction and including a surface relief pattern, a partially reflective coating formed on the surface relief pattern, and a second transparent substrate bonded over the partially reflective coating with an optical adhesive having the first transparent substrate index of refraction.

A contact lens and a method for treating an eye with myopia is described. The contact lens includes an inner optic zone and an outer optic zone. The outer optic zone includes at least a portion with a first power, selected to correct distance vision. The inner optic zone has a relatively more positive power (an add power). In some embodiments the add power is substantially constant across the inner optic zone. In other embodiments the add power is variable across the inner optic zone. While in some embodiments the inner optic zone has a power designed to substantially eliminate lag of accommodation in the eye with myopia, in other embodiments, the add power may be higher.

A multifocal ophthalmic lens has a surface that varies across at least a portion of the lens to form a surface power map. The surface power map comprises a spiral, with a power that varies substantially periodically both radially outwards from and angularly about an optical axis of the lens. A period of the radial variation is greater than 100 microns and a period of the angular variation is greater than 6 degrees. Methods of making and using the multifocal ophthalmic lens are also described.

A method and system provide an ophthalmic device. The ophthalmic device includes an ophthalmic lens having anterior surface, a posterior surface and at least one diffractive structure including a plurality of zones. The at least one diffractive structure is for at least one of the anterior surface and the posterior surface. Each zone includes at least one echelette having a least one step height. The step height(s) are individually optimized for each zone. To compensate chromatic aberration of eye from distance to a range of vision, a greater than 2π phase step height may be employed and the step height(s) folded by a phase, which is an integer multiple of two multiplied by π. Hence chromatic aberration of eye may be compensated to improve vision from distance to near.

An ophthalmic lens, including: an optical portion having: a near portion with a near dioptric power for viewing near distance; and a distance portion with a distance dioptric for viewing a distance further than the near distance; with the near portion or the distance portion being centrally disposed, wherein a portion that is not centrally disposed is annularly disposed at an outer edge of the near portion or the distance portion, the near portion or the distance portion centrally disposed in the optical portion having a portion A in which power is intensified and then weakened when viewed in X direction from a center to a periphery, and having a portion A′ in which power is intensified and then weakened when viewed in X′ direction from the center to the periphery, which is an opposite direction to the X direction, and also included is a related technique thereof.

An optical device having an optical axis. The device includes at least one surface with at least two meridians, at least one portion of which forms, seen face-on, at least one spiral segment the central point of which is on the optical axis. Each spiral segment defining meridians of different optical powers. The focus obtained extends over a tubular region.

Methods and devices are provided for wavefront treatments of an eye's astigmatism, coma, and presbyopia. Wavefront-engineered monofocal lenses, inducing spherical aberration into the eye's central pupil, provide vision correction beyond 20/20 acuity and improve quality of vision by eliminating image distortion caused by uncorrected astigmatism and coma in the eye. New presbyopia-correcting lenses, including Extended Depth of Focus (EDOF) bifocal, EDOF trifocal, and quasi-accommodating lenses, are disclosed for presbyopia corrections between +0.75 D to +3.25 D, and they are achieved by inducing a positive spherical aberration and a positive focus offset less than 3 Diopters in a central section plus a negative spherical aberration in an annular section within a central part of a monofocal lens. These wavefront lenses can be adapted for contact lenses, implantable contact lenses, Intraocular Lenses (IOLs), phakic IOLs, accommodating IOLs, corneal inlays, as well as eyepieces for Virtual Reality (VR) displays, game goggles, microscopes, telescopes.

Disclosed is a contact lens comprising an optical region including a first area, a second area and a third area, concentrically arranged in such order from a lens center. The first area includes a correction zone having a nearsightedness correcting power. The second and third areas each include at least two defocusing zones and at least one correction zone, wherein the at least two defocusing zones and the at least one correction zone are alternatively arranged. The second area has a first power difference of −2.00 to −5.00 D, the third area has a second power difference of −3.00 to −10.00 D, and the second power difference is equal to or more negative than the first power difference.

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.