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7625085 Toric contact lens with improved posterior surface design  
Ophthalmic lenses for correcting astigmatism having a posterior surface with a central optic zone, a peripheral zone, and a blending zone therebetween. The surface of the central zone may be...
7621635 Toric contact lenses  
A set of toric contact lenses, each lens in the set including a posterior surface, an anterior surface, a peripheral zone and a center thickness for each lens. At least one of said surfaces...
7527376 Method for designing spectacle lens, spectacle lens, and spectacles  
A method of correcting the effects of a bend angle of 200 degrees or larger of spectacle frames, and astigmatism correcting characteristics in such spectacle frames. An exemplary embodiment of the...
7422325 Method of designing a spectacle lens  
A method of designing a spectacle lens having a combined refracting surface in at least one of two refracting surfaces at object and eye sides structuring the spectacle lens, wherein the combined...
7311397 Prosthetic eye with polarized dilating pupil and cooperating polarized eyeglass lens  
A prosthetic eye has a white scleral portion with a simulated iris painted on the front and a horizontal polarized disc at the center of the iris. The center of the polarized disc is darkened with...
7249850 Method for determination of an ophthalmic lens using an astigmatism prescription for far sight and for near sight  
A method is disclosed for determination of an ophthalmic lens for a wearer for whom a near-vision and far-vision astigmatism prescription has been made out, the near-vision astigmatism being...
7150527 Progressive power semi-finished spectacle lens blanks for astigmatic presbyopes  
An optical lab is provided with a set of different progressive power semi-finished spectacle lens blanks for different combinations of base curve, add power, cylinder and axis, where each...
7111937 Spectacle lenses incorporating atoric surfaces  
An atoric surface is formed such that the surface coordinate lines are parallels with the shape of off-set curves of the trajectory curve of a swept surface, and meridians with the shape of the...
7108373 Spectacle lens designing method and spectacle lens  
It is made possible to easily obtain a spectacle lens with higher performance in a spectacle lens designing method in which an eyeball motion (Listing's Law) is taken into consideration. A...
7101042 Multifocal contact lens  
A contact lens formed from a transparent material having front and rear surfaces, wherein the rear surface has a base curve which is adapted to fit an eye of a wearer of the lens. The front surface...
6994435 Aspherical spectacle lens  
There is provided a spectacle lens having an outer surface and an inner surface, one of the outer and inner surfaces being configured to be a rotationally-asymmetrical aspherical surface. When a...
6851804 Readjustable optical elements  
The invention relates to optical elements whose optical properties can be repeatedly adjusted over time. Through the use of modifying compositions capable of stimulus induced polymerization coupled...
6802607 Progressive cylinder ophthalmic lenses  
The invention provides methods for designing lenses useful for correcting astigmatism in which there is a progressive cylinder power. The lens of the invention permits the cylinder power to act...
6752497 Single vision spectacle lens  
Described is a single vision spectacle lens for spherical or astigmatic prescriptions. It is characteristic of the present invention that at least one surface is an atoroidal surface, and that...
6749300 Capillary optical element with a complex structure of capillaries and a method for its manufacture  
The invention describes a capillary optical element with a complex structure of capillaries and a method for its manufacture. To achieve uniform transmission, for example, a lens can be used as a...
6709107 Composite ophthalmic lens and method for obtaining same  
The composite ophthalmic lens ( 1 ) comprises a first layer ( 2 ), at least 200 micrometers thick, forming a front part of said lens, of a first polymeric material of refractive index higher than...
6491393 Toric contact lens markings  
Toric contact lenses are provided with markings that enable identification of the offset between the cylindrical axis of the toric zone and the ballast axis. Surfaces of the lenses include two...
6390623 Customized progressive addition lenses  
The invention provides progressive addition lenses designed for uses in which a large region of intermediate refractive power is desirable. The enlarged intermediate region is provided without...
6382789 Toric ophthalmic lenses  
A method is provided for determining, by optimization, an ophthtalmic lens for a spectacle wearer for whom an astigmatism has been prescribed, comprising the steps of: selecting a starting lens...
6347869 Convex lens and stepped prism combined glasses  
A pair of glasses for sustained close distance work includes a pair of integrated convex lens and stepped prism based-in. The thickness and weight of the lens will be reduced because it is made of...
6231182 Monofocal ophthalmic lens having two aspherical surfaces  
A monofocal ophthalmic lens having a front and a rear surface, each of which is aspherical, of which at least one surface has identical radii of principle curvature in the apex. The average surface...
6213603 Progressive ophthalmic lens  
A progressive ophthalmic lens including at least one distant vision zone in which the power is suitable for distant viewing, at least one near vision zone in which the power is suitable for near...
6199982 Presbyopia correction contact lens  
Presbyopia correction contact lens including an optical zone consisting of a substantially circular central optical portion and an annular peripheral optical portion outside the central optical...
6183084 Progressive addition lenses  
The present invention relates to ophthalmic lenses. In particular, the invention provides ophthalmic lenses with reduced astigmatism. The lenses are composed of a surface and a compensating...
6183082 Contact lenses with constant peripheral geometry  
The invention provides contact lenses. In particular, the invention relates to contact lenses in which the geometry of the lens periphery remains constant with changes in the optic zone curvature.
6176578 Toric contact lenses  
The invention provides toric contact lenses that exhibit good fit and good on-eye orientation regardless of whether the lens has a plus or a minus spherical power.
6142625 Toric multifocal lens having different astigmatism corrective optical powers in respective vision correction regions, and method of producing the same  
A toric multifocal lens including a plurality of vision correction regions having centers on a common optical center axis, the plurality of vision correction regions providing respective different...
6123422 Methods for producing progressive addition lenses  
The invention provides progressive addition lenses in which lens unwanted astigmatism is reduced and channel width through the intermediate and near vision zones is increased as compared to...
6086202 Method of producing angular tolerance markings for lenses for correcting astigmatism, and associated lenses  
In a method of producing tolerance markings on a contact lens for correcting astigmatism which has a given cylinder, the tolerance markings comprise at least two straight line segments in the...
6012813 Aspherical spectacle lens  
An aspherical lens by which residual aberration in all of third eye-positions is corrected and which the center or edge thickness can be reduced. Thus, this aspherical lens employs a first or...
6000798 Ophthalmic optic devices  
A novel ophthalmic lens is provided. The lens includes an astigmatism subtracting surface that removes unwanted astigmatism caused by other elements of the lens.
5992998 Ophthalmic lens having a progressive effect  
Disclosed is an ophthalmic lens having a progressive optic power, this lens being provided with at least one surface having a surface power which changes in such a manner that, starting from at...
5971541 Correction of astigmatism using rotationally symmetric contact lenses  
A rotationally symmetric contact lens has a reservoir formed centrally on the posterior surface thereof to provide an additional optical power of up to 1.51 diopters. The reservoir may be...
5926250 Multifocal lens for eyeglass and eyeglass lens  
In a multifocal lens for eyeglass provided with visual field areas having different refractive powers, being a distance-vision area and a near-vision area, a multifocal lens for eyeglass (10) is...
5920372 Ophthalmic lens having an astigmatic effect  
An ophthalmic lens in which one surface is provided with at least one region, in which the refracting power is practically constant except for aspherical corrections, and at least one transition...
5880810 Series for progressive spectacle lenses  
A series of progressive ophthalmic lenses, each having a varying surface power in a distance part and/or a varying increase in surface power from a distance part to a near part, includes a front...
5847802 Concentric annular ring lens designs for astigmatic presbyopes  
Concentric lens designs are disclosed for astigmatic presbyopes which comprise at least one surface which has a circular central portion and a plurality of concentric annular rings with at least...
5838419 Method and apparatus for treating refractive eye abnormalities  
A method for treating refractive eye abnormalities, including myopia, hyperopia, and astigmatism, by shifting the spectral distribution of incident light is described. Optical filters or tints are...
5805260 Combined multifocal toric lens designs  
Combined multifocal toric lens designs are disclosed which combine a correction for astigmatism, either corneal or lenticular, with a correction for presbyopia. One of the front and back surfaces...
5796462 Aspheric toric lens designs  
Aspheric toric lens designs are disclosed which reduce the number of cylindrical axis locations required for stock keeping units in inventory by aspherizing the toric surface thereof. The present...
5793465 Toric surfacecasting  
An optical preform has a predetermined spherical curve on a concave surface of the optical preform, a predetermined spherical curve on a convex surface of the optical preform and a near add power....
5767939 Eyeglass lens  
An eyeglass lens of the present invention has a surface which is a refracting surface arranged such that two coordinate axes X and Y are set to contact with the refracting surface at a determined...
5684560 Concentric ring single vision lens designs  
Concentric ring, single vision lens designs are disclosed which improve the depth-of-focus of the lens relative to current spherical contact lenses or intraocular lenses by placing at least one...
5652638 Concentric annular ring lens designs for astigmatism  
Concentric annular ring lens designs are disclosed for astigmatic patients, particularly lens designs which reduce the sensitivity of the patient to toric axis misalignment, thus reducing the...
5650838 Programmable smooth junctions on lenses  
Programmable smooth junctions are provided for lenses and molds therefor, particularly for toric lens designs, which enable a numerically controlled (NC) machine to be programmed to machine smooth...
5650837 Rotationally stable contact lens designs  
Non-ballasted, eyelid rotationally stabilized designs are disclosed for use in toric or multifocal toric contact lenses. The back surface of the lens includes a toric or multifocal toric surface...
5610670 Opthalmic lens having a positive refractive power  
An aspherical ophthalmic lens having a positive refractive power, an axis of symmetry and a periphery includes front and rear refractive surfaces. The front refractive surface has a meridional...
5608471 Soft, bifocal contact lens  
A soft contact lens having the ability to make bifocal corrections can be made by the conjunctive use of lens elements comprising: an annular main body portion having a concave, eye-contacting,...
5570143 Toric lens with axis mislocation latitude  
A toric lens for axis mislocation correction has optical topography on at least one surface of the lens which induces a depth of field effect on the eye and enables the principle meridians of power...
5550600 Ophthalmic lens having a negative refractive power  
An aspherical ophthalmic lens having a negative refractive power, an axis of symmetry and a periphery includes front and rear refractive surfaces. The front refractive surface has a meridional...
Matches 1 - 50 out of 99 1 2 >