49 results about "Care contact lens" patented technology

The present invention provides transparent silicone hydrogels with high acrylamide monomer content and an excellent balance between moisture content.The silicone hydrogels may be obtained by polymerizing a monomer mix containing a plurality of monomers, wherein the monomer mix comprises about 30 to about 98% by weight of at least one type of silicone monomer which is, and about 1 to about 50% by weight of at least one type of non-silicone type (meth)acrylamide monomer containing two or more hydroxyl groups within a molecule; wherein the weight percents are based upon the total amount of monomer components and polymer components in the monomer mix.

A corneal contact lens for use in treating myopia by controlled corneal molding. The lens includes a central zone having a central zone radius of curvature and a tear zone. The tear zone is located concentrically around the central zone and has a radius of curvature which is smaller than the central zone. A transition zone is provided between the central zone and the tear zone wherein the transition zone has at least one transition ring. The lens may also include a peripheral zone which is located concentrically around the tear zone wherein the peripheral zone includes multiple peripheral curves having radii of curvature equal to or greater than the central zone.

An improved contact lens of the present invention, which keeps the eyes moist, avoids irritating the eyes, improves the comfort of fitting, and provides stabilization, comprises: a body with a circumference; at least one pattern located near the circumference, and a maximum width of the contact lens is less than a maximum value in such that the contact lens can avoid being restricted by eye muscles while fitting onto eyes.

The smart contact lens system hereby proposed, integrates a number of electronic, electro-optical or optical components on the contact lens substrate. The system, inter alia, is arranged to identify and track changes in pupillary response due to mental task engagement, also known as task-evoked pupillary response. To this end, the system proposed tracks a variety of conditions affecting reflexes such as pupillary reflex or accommodation reflex, in order to compute the extent of pupil dilation attributable to the mental task engagement. Another aspect of present invention is a smart contact lens system, which minimizes pupillary reflex caused by light by controlling the amount of light entering the eye. When pupillary reflex is non-existent, computing a task-evoked pupillary response becomes a much easier task.

A contact lens is provided. One embodiment of the present invention provides a method for fitting and prescribing a contact lens. Another embodiment of the present invention comprises a contact lens construction that provides a stable prescription platform. Yet another embodiment comprises a contact lens that is constructed to accommodate ectasia associated with keratoconus. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the subject matter of the disclosure contained herein. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims.

The present invention provides a contact lens having an orientation / stabilization and optionally translation feature that does not provide an prism optical distortion and can effectively maintain a predetermined orientation of the lens on an eye. Like a conventional lens ballast, the orientation feature of the invention works by weighing the lens at its lower half portion, causing it to come to an equilibrium position on the eye. With such orientation feature, the optical zone of the anterior surface can be designed independently to provide an optimal visual performance.

A monocentric bifocal contact lens with upper and lower optical power zones is connected by a transition comprising a family of sigmoidal curves. The sigmoidal curve begins with a common tangent at the boundary of the near zone and, with a reversal of sign from the near zone curve, climbs with increasing positive slope to an inflection point, whereupon it continues to climb with decreasing positive slope until reaching the distance zone curve, with which it has a common tangent. There is no discontinuity in the first derivative of the curve throughout its length. A sigmoidal curve can be constructed from numerous mathematical functions, examples of which include polynomial, conic, transendental, or cumulative distribution curves.

A contact lens including a single component lens sized and dimensioned for placement on a cornea of an eye. The single component lens includes a first base curve for the back surface of the single component lens, wherein the first base curve is associated with the first sub-axis; a second base curve for the back surface, wherein the second base curve is associated with the second sub-axis; a third base curve for back surface, wherein the third base curve is associated with the third sub-axis; and a fourth base curve for the back surface, wherein the fourth base curve is associated with the fourth sub-axis. The first base curve, the second base curve, the third base curve, and the fourth base curve are selected to form a shape for the back surface of the single component lens that conforms to a measured shape of the cornea.

A colored contact lens comprising a generally uncolored pupil region, a generally annular-shaped iris region and a multicolored pattern on the iris region. The multicolored pattern is sufficiently colored to change the apparent color of an iris of a person wearing the contact lens and comprises a plurality of color elements. The lens further comprises more than 1000 discrete generally uncolored regions defined by the color elements. At least 1000 of the discrete generally uncolored regions are sufficiently small such that an ordinary viewer viewing the contact lens from a distance of sixteen inches cannot detect the presence of any of the at least 1000 generally uncolored regions when the wearer is wearing the contact lens.

A colored contact lens having a very natural appearance is disclosed. The inventive lens has a non-opaque pupil section and iris section that is at least partially opaque and comprised of two portions. A first portion, generally located on the outside of the iris section, has a first shade. A second portion, generally located on the inside of the iris section has a second shade. A jagged border separates the two portions. A third iris section and second jagged border are also disclosed. In some embodiments portions of the iris section may be non-opaque.

A contact lens, comprising a preprint of a first shade and a main print of a second shade, wherein the preprint consisting of a first band of gradient dot matrix, wherein the main print consisting of a second band of evenly spaced circular voids, wherein the second band surrounds the starburst pattern, wherein the first band and the second band have a substantially identical outer diameter and the first band has a smaller inside diameter than the second band, wherein the first shade and the second shade are different, wherein the gradient dot matrix is characterized by dot coverage increases in a radial direction from the center too the peripheral edge or a position near the peripheral edge of the substantially-circular pattern.

A colored contact lens having a very natural appearance is disclosed. The inventive lens has a non-opaque pupil section and iris section that is at least partially opaque and comprised of two portions. A first portion, generally located on the outside of the iris section, has a first shade. A second portion, generally located on the inside of the iris section has a second shade. A jagged border separates the two portions. A third iris section and second jagged border are also disclosed. In some embodiments portions of the iris section may be non-opaque.

A pupil reduction corneal contact lens having a light-admitting central area surrounded by a light-blocking area. The central area can be clear or have a slight tint for reducing glare that would not reduce visual acuity to 20 / 25 or less. The lenses can be soft, gas-permeable or hard.

It is an object of the invention to ensure in a series of contact lenses composed of an assorted plurality of contact lenses having mutually different optical characteristics such as refractive power or the like that each contact lens is capable of exhibiting advantageously and consistently a good wear comfort and tear fluid exchange. In order to attain the object, the present invention arranges each contact lens 10a, 10b, 10c making up the series contact lens designed and having mutually different optical characteristics in the optical zone, such that not only is a shape of the lens back surface 14 of the optical zone 28 identified, but a shape of the peripheral zone 30 is identified at least the outer peripheral zone 44 that contributes to wear comfort and tear fluid exchange.

The invention relates to a contact lens cleaning device, in particular to a contact lens restoring instrument.The contact lens restoring instrument comprises a base, a middle seat, a cover body and a cleaning mechanism, wherein two accommodating grooves are formed in the top surface of the middle seat; a sealing cover is fastened to each accommodating groove; the cleaning mechanism comprises a power supply, a circuit board, two conducting plates and two electrodes; the circuit board is arranged in an electronic element chamber and is electrically connected with the power supply; the two conducting plates are arranged in the electronic element chamber and one ends of the two conducting plates are electrically connected with the circuit board; the two electrodes are respectively arranged at the bottoms of the two accommodating grooves in a penetrating manner and are connected with the bottoms of the accommodating grooves in a sealed manner; the top ends of the electrodes are exposed out of the accommodating grooves while the bottom ends of the electrodes are exposed out of the electronic element chamber; and the bottom ends of the electrodes are electrically connected with the other ends of the conducting plates.The contact lens restoring instrument is reasonable in design, good in waterproofness and convenient to take along; a cleaning function and a storing function are combined; and meanwhile, contact lenses are cleaned effectively.

The present invention is a colored contact lens whose color is produced by Bragg diffraction. The contact lens includes a hydrogel comprised of either dimethyl acrylamide, HEMA (hydroxylethyl methacrylate) or 3-(trimethoxysilyl)propyl methacrylate and a light diffracting crystalline colloidal ordered array of particles polymerized in the hydrogel. The crystalline colloidal ordered array has a fixed lattice spacing.

Pearlescent pigments may be incorporated into one or more regions of a cosmetic contact lens to add a shiny, radiant and iridescent appearance thereto. More particularly, mica based pearlescent pigments coated with an oxide, for example, titanium dioxide or iron oxide, incorporated into one or more regions of the contact lens will result in the one or more regions having a natural, wet reflective appearance.

Provided is a colored contact lens in which a colored band is disposed at a boundary part between a dark part and a white part of an eye, and a density is gradually changed from the dark part to the white part of the eye such that the density of this colored band decreases from an inner circumference side to an outer circumference side. As a result, a novel colored contact lens is provided with which it is possible to bring out beauty of the white part of the eye, which has been ignored by conventional technology, while an impression is maintained that is as natural and elegant as possible by avoiding an artificial impression such as that found in conventional technology.

[Problem] The purpose of the present invention is to propose a design for a contact lens which can impart natural appearance to eyes of a person who wears the contact lens and can change the original color or texture of the eyes objectively, and to provide a colored contact lens which can be produced at a reduced cost without adversely affecting physical properties inherent in the contact lens. [Solution] The colored contact lens according to the present invention has a transparent central visual area and a colored area surrounding the central visual area, said colored contact lens being characterized in that the colored area essentially has a sea-island structure composed of a continuous transparent part as a sea part and discontinuous colored opaque parts as island parts, wherein each of the colored opaque parts has a scaly shape and has a size of 70 to 600 [mu]m as measured in the direction of the diameter of the lens and 40 to 300 mum as measured in the direction of the circumference of the lens.

Disclosed is a contact lens having a refractive power ranging from −15.0 to +15.0 diopters in an optical zone thereof, wherein a back optical zone is a conical surface having a conic coefficient ranting from −0.04 to −0.49, and a front optical zone is a conical surface having a conic coefficient ranging from −0.02 to −0.50. The contact lens exhibits optical characteristics required in consideration of an optical system of an eye when being positioned at a position of rest during wear in which an optical axis of the optical zone is decentered with respect to an optical axis of the eye.

A contact lens (10) and method for making the same provides a cosmetic effect using pearlescent pigment (22).

An improved contact lens of the present invention, which keeps the eyes moist, avoids irritating the eyes, improves the comfort of fitting, and provides stabilization, comprises: a body with a circumference; at least one pattern located near the circumference, and a maximum width of the contact lens is less than a maximum value in such that the contact lens can avoid being restricted by eye muscles while fitting onto eyes.

The invention discloses contact lenses. Each of the contact lenses comprises a central part (2) of an optical area and a peripheral part (1) which surrounds the central part (2), wherein the diameter of the central part (2) is greater than that of a pupil; at least one coloured mark (3) is arranged on the peripheral part (1); and the mark (3) covers an iris of an eyeball after each of the contact lenses is worn. By the invention, the defects of the prior art are overcome; and the contact lens which is applied to a left eye can be distinguished from the contact lens which is applied to a right eye, and the contact lenses are easy to recognize.

The invention relates to a contact lens capable of altering the appearance of the eye of the wearer when the wearer is wearing the contact lens. More particularly, but not exclusively, the contact lens is capable of making the eye appear bigger and brighter. As such, a preferred aspect of the invention includes a contact lens comprising a non-opaque pupil region; a generally annular-shaped iris region having an area and circumferentially surrounding the pupil region; a pattern printed on the iris region, the pattern extending across a portion of the area of the iris region to impart to the iris region at least a perception of a structure of an iris of an eye; and wherein the diameter of the iris region is greater than the diameter of a wearer's iris thereby providing a lens capable of making the eye of the wearer appear bigger when the wearer is wearing the contact lens.

The invention discloses a contact lens and aims at solving the problem in the prior art that the contact lenses are incapable of effectively preventing eye fatigue due to the lack of the micro-electro physical therapy function. The contact lens comprises a lens main body, a piezoelectric material layer and an insulation layer, wherein the lens main body is provided with a first surface and a second surface; the piezoelectric material layer vertically grows on the first surface of the lens main body; the insulation layer covers the piezoelectric material layer. According to the embodiment of the invention, the lens main body of the contact lenses is provided with the piezoelectric material layer; when the user wearing contact lenses blinks, the piezoelectric material layer stresses or deforms due to rotation or extrusion, so that a microcurrent is generated between eyelid and eyeball, thus the micro-electro physical therapy effect is realized.

A contact lens, comprising a preprint of a first shade and a main print of a second shade, wherein the preprint consisting of a first band of gradient dot matrix, wherein the main print consisting of a second band of evenly spaced circular voids, wherein the second band surrounds the starburst pattern, wherein the first band and the second band have a substantially identical outer diameter and the first band has a smaller inside diameter than the second band, wherein the first shade and the second shade are different, wherein the gradient dot matrix is characterized by dot coverage increases in a radial direction from the center too the peripheral edge or a position near the peripheral edge of the substantially-circular pattern.

Compositions for caring for contact lenses and eyes include a liquid aqueous medium and a vitamin derivative component present in an amount effective as a surfactant in the composition. The compositions can be used to clean, soak, re-wet and, with the inclusion of a disinfectant, disinfect contact lenses. In addition, the compositions are effective as artificial tears and eye wash solutions. Methods for contact lens care and eye care are also disclosed.

The invention discloses a contact lens cleaning box, which comprises a box cover, a box body, brackets and cylindrical filter screens, wherein the lower ends of the brackets are provided with disks for accommodating contact lenses; the cylindrical filter screens are positioned in the inner cavity of the box body; and the upper ends of the cylindrical filter screens are provided with openings into which the brackets can be placed. During use, lenses can be placed on the disks at the lower ends of the brackets, the disks at the lower ends of the brackets extend into the cylindrical filter screens when the box cover is covered on the box body, and the cylindrical filter screens can be used for preventing the lenses from being displaced and ensuring that a cleaning solution is fully contacted with the lenses, so that greater convenience is brought to storage and picking of the lenses for a user in comparison to the conventional cleaning box on the basis of ensuring the cleaning effect.