A contact lens for use in controlling or retarding the progression of myopia in an eye 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. Preferably, the rear surface of the lens is shaped to conform to the cornea of the eye and the front surface of the lens is shaped to provide—in conjunction with the rear surface—the desired optical properties of the central and peripheral optical zones. The front surface is also preferably contoured to form a smooth transition between the junction of the central optical zone and the peripheral optical zone, with or without designed optical properties such as progressive power.

The present disclosure is directed to devices and/or systems of modifying the incoming light through spectacle lenses that utilise at least one auxiliary or regional optical element, to provide extension or elongation of the depth of focus for a myopic eye. The disclosure relates to methods of correcting myopia and controlling or reducing the rate of myopia progression utilising extension of the depth of focus provided by the at least one auxiliary or regional optical element configured within, or in conjunction, combination, or juxtaposition with spectacle lenses. This disclosure relates to the use of an axicon, a light sword element, or a peacock eye element within the regional optical element or a sub-lens. This disclosure also relates to the use of a plurality of axicons, light sword elements or peacock eye elements configured within, or in conjunction, combination, or juxtaposition with spectacle lenses.

The present disclosure relates to a contact lens for managing myopia wherein the contact lens comprises of an optical zone about an optical axis and a non-optical peripheral carrier zone about the optical zone; wherein the optical zone is configured with a substantially single vision power profile providing correction for the eye, and a decentred second region configured with one or more meridionally and azimuthally variant power distributions, wherein at least one of the meridionally and azimuthally variant power distribution is devoid of mirror symmetry, the second region located substantially away from the optical centre and configured to provide at least in part a regional conoid of partial blur producing an optical stop signal for the eye; and wherein the non-optical peripheral carrier zone is configured with a thickness profile that is substantially rotationally symmetric to further provide a temporally and spatially varying stop signals to reduce myopia progression.

A method for preparing an ophthalmic device for slowing, inhibiting or preventing myopia progression involves (a) soaking an ophthalmic device in one or more first solvent solutions to swell the ophthalmic device; (b) soaking the swelled ophthalmic device in one or more second solvents solutions comprising one or more red-light blocking compounds blocking greater than about 5% to about 25% of red-light transmission through the ophthalmic device at a wavelength of from about 550 nanometers (nm) to about 800 nm to de-swell the swelled ophthalmic device and entrap the one or more red-light blocking compounds in the de-swelled ophthalmic device; and (c) sterilizing the de-swelled ophthalmic device.

A method for preparing an ophthalmic device for slowing, inhibiting or preventing myopia progression involves contacting an ophthalmic device having one or more reactive functional groups with one or more red-light blocking compounds having one or more reactive functional groups complementary to the one or more reactive functional groups of the ophthalmic device in a basic solution for a time period sufficient to covalently bond at least one reactive functional group of the ophthalmic device with at least one reactive functional group of the one or more red-light blocking compounds. The one or more red-light blocking compounds block greater than about 5% to about 25% of red-light transmission through the ophthalmic device at a wavelength of from about 550 nanometers (nm) to about 800 nm.

Light weight ophthalmic lenses include a curved back lens attached to a curved front lens assembly having a functional element. An ophthalmic lens includes a curved front lens assembly and a curved back lens. The curved front lens assembly has an essentially constant thickness, forms an external world-side convex surface of the ophthalmic lens, and includes a functional element operable to modify an image of a real world scene viewed via the ophthalmic lens. The curved back lens forms an external user-side surface of the ophthalmic lens, has a world-side convex surface that is shaped complementary to and interfaced with the front lens assembly, and provides a prescribed vision correction.

The present disclosure is directed generally to a lens that provides a stop signal to a myopic eye, over a substantial portion of the spectacle lens that the viewer is using. The present disclosure is directed to devices, methods and/or systems of imposing a stop signal to eye growth, using a spectacle lens in conjunction with a micro lenslet array. The present disclosure is also directed to devices, methods and/or systems of modifying incoming light through spectacle lenses that utilizes chromatic cues to decelerate the rate of myopia progression. The present disclosure is directed to devices, methods and/or systems of imposing a stop signal to eye growth, using a spectacle lens in conjunction with a refractive optical element and/or diffractive optical element that offer conflicting or contradictory optical signals at a wavelength between 510 nm and 610 nm.

Methods and systems wherein laser induced refractive index changes by focused femtosecond laser pulses in optical polymeric materials or optical tissues is performed to address various types of vision correction.

A contact lens that is configured to rotate when the lens is being worn by a lens wearer, methods of manufacturing such a lens, and methods of using such a lens to provide a rotationally varying treatment to a lens wearer are described. The lens includes an optic zone and a peripheral zone surrounding the optic zone. The peripheral zone has a variation in thickness configured to promote rotation of the lens.

Ophthalmic lenses are described that have a layer, which has a base refractive index, provided on a surface of the lens. The layer includes at least one gradient index optical element. The ophthalmic lens may be a spectacle lens or a contact lens.