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.

A contact lens for use in controlling the progression of myopia has a central optical zone approximating the normal diameter of the pupil of the eye that gives clear central vision at distance for the wearer. An annular peripheral optical zone that is substantially outside the diameter of the pupil is formed around the central optical zone with greater refractive power than that of the central zone so that oblique rays entering the eye through the peripheral optical zone will be brought to focus at a focal plane that is substantially on or anterior to the peripheral region of the retina.

A contact lens product includes a multifocal contact lens and a buffer solution. The multifocal contact lens includes a central region and at least one annular region. The annular region concentrically surrounds the central region. A diopter of the annular region is different from a diopter of the central region. The multifocal contact lens is immersed in the buffer solution, and the buffer solution includes a cycloplegic agent.

A contact lens for shaping a cornea of an eye of a patient to treat high cylinder astigmatism may include a peripheral portion, an alignment portion, a treatment portion, a reverse portion, and a staining feature. The peripheral portion may cause migration of epithelial cells from a periphery of a cornea of the eye of the patient towards a center of the cornea of the eye of the patient. The alignment portion may align the contact lens on the cornea. The treatment portion may cause migration of the epithelial cells from the center of the cornea towards the periphery of the cornea. The reverse portion may relieve pressure caused by the migration of the epithelial cells. The staining feature may contact the cornea, thereby reshaping the cornea to treat high cylinder astigmatism. The staining feature may apply a ribbon-shaped staining pattern to the cornea across the contact lens.

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.

An intelligent multifocal lens includes an optical zone. The optical zone includes a near vision zone, a transition vision zone, and a far vision zone surrounding the near vision zone and the transition vision zone. An add power of the near vision zone has a negative correlation with a radius of the near vision zone. A reduction of the power of the transition zone is in a range of 0.1D to 0.6D. The near vision zone and the transition vision zone have an interface therebetween, and a power of the near vision zone and a power of the transition vision zone at the interface therebetween are the same. The transition vision zone and the far vision zone have an interface therebetween, and a power of the transition vision zone and a power of the far vision zone at the interface therebetween are the same.

Apparatuses, systems and methods for providing improved ophthalmic lenses, particularly intraocular lenses (IOLs). Exemplary diffractive intraocular implants (IOLs) can include a diffractive profile having multiple diffractive zones. The diffractive zones can include a central zone that includes one or more echelettes and a peripheral zone beyond the central zone having one or more peripheral echelettes. The central diffractive zone can work in a higher diffractive order than a remainder of the diffractive profile. The combination of the central and peripheral zones and an optional intermediate zone provides a longer depth of focus than a diffractive profile defined just by a peripheral and/or optional intermediate zone.

A diffractive eye lens having a front side, a rear side and an optical main axis, wherein the front side and/or the rear side has a spherical, an aspherical, a spherical-toric or an aspherical-toric basic shape, and the front side and/or the rear side has a diffractive optical structure. The diffractive eye lens allows for color correction and simultaneously improves visual properties by reducing a halo. The diffractive optical structure in a first lens region is designed such that, at a design wavelength, there is a significant diffraction efficiency for a phase deviation between the first main sub-zones of more than one wavelength and, for the first lens region, On average over all diffraction zones, a proportion of the main sub-zones on the diffraction zones is for example at least 94%, at least 95% and at best nearly 100%.

A contact lens (201) and methods of manufacturing such a lens are described. The lens (201) includes an optic zone (202). The optic zone (202) comprises a central region (205), the central region (205) having a first optical axis (219), a base radial curvature power, a base radial sagittal power, and a centre of curvature that is on the first optical axis (219). The optic zone (202) comprises an annular region (203), wherein at a point halfway across the width of the annular region (203) the annular region (203) has a radial curvature power of X, wherein X is greater than the base radial curvature power. The annular region (203) has an off-axis centre of curvature that is a first distance from the optical axis (219) such that, at a point halfway across its width, the annular region (203) has a sagittal power of Y, wherein Y is greater than the base radial sagittal power, and wherein Y is less than X.

A contact lens (1) comprises an optical zone (5) extending with a first diameter (A) about an optical axis (X) of the lens, and is provided with a first dioptric power and a central region (6), extending about the optical axis (X) with a second diameter (B), smaller than the first diameter, inside which is provided an optically inactive zone (7) with a diameter smaller than 0.5 mm.