Abstract: The present invention provides a contact lens manufactured at least partially from an intelligent polymer, the lens having a relaxed state which, upon application of a first stimulus forms a first corrective shape and which, upon application of a second stimulus, forms a second corrective shape, wherein the corrective effect provided by the lens in the relaxed state is intermediate to the corrective visual effects provided by the first and second corrective shapes.

Abstract: An ophthalmic toric lens to be worn on an eye or implanted inside of an eye, the lens includes an anterior surface, a posterior surface, and a toric shape formed into one of the anterior and posterior surfaces, the toric shape comprising two non-spherical principle meridians each having a region within an annular area of optical zone and the region of one principle meridian being configured for producing a longitudinal ray aberration of a different sign than a longitudinal ray aberration sign from the region of another principle meridian.

Abstract: An ophthalmic lens is presented. The lens includes a toric optical zone and a phase-affecting, non-diffractive optical element for extending depth of focus of imaging.

Abstract: A contact lens incorporating one or more dynamic fluid zones fabricated from a material that is readily deformable under eyelid pressure during blinking allows for the delivery of one or more agents to the eye, dynamic cosmetic eye enhancement, and/or dynamic rotational misalignment correction. The one or more agents may include therapeutic agents, nutritional agents and pharmacological agents.

Abstract: Feature patterns may be incorporated into the peripheral region of the back curve surface of contact lenses in order to increase tear exchange between the contact lens and the cornea. The feature patterns may be based upon fractal geometry and be incorporated anywhere in the periphery of the lens. The placement feature patterns are preferably determined utilizing a combination of simulations and experimentation.

Abstract: A segmented delta toric lens is described. The segmented delta toric lens includes an optical area, a circumference area surrounding the optical area and a segmented delta protrusion formed on the circumference area. The segmented delta protrusion is located apart from the optical area and the edge of the circumference area. The segmented delta toric lens can further include a mark to indicate a direction of the segmented delta toric lens.

Abstract: A toric contact lens having a prism ballast structure, wherein a center optical area, an annular transition area surrounding the center optical area determining a refractive degree, and an annular peripheral area surrounding the transition area, are defined on a lens front surface. A shape of the lens front surface has a mirror symmetry with a vertical meridian as a boundary, in such a manner that a thickness is smoothly decreased toward a lens lower end portion from two maximum thickness portions and where the thickness of the lens is maximum, and a valley-shaped slab-off is formed between these maximum thickness portions and.

Abstract: An ophthalmic lens for modifying or reducing non-axisymmetric higher order aberrations includes an optic body disposed about an optical axis having a primary meridian and an orthogonal secondary meridian. The optic body comprises an anterior surface and an opposing posterior surface. The optic body includes an optic zone comprising a base shape that is configured to form an image or focus from light incident on the surfaces, either alone or when used within an optical system. The optic body also includes a higher order toric shape that is imposed on or added to one of the surfaces. The higher order toric shape also includes a first profile disposed along the primary meridian and a second profile disposed along the secondary meridian that is different in shape from the first profile. The higher order toric shape is characterized by a profile along at least one meridian of the lens that changes with increasing radius from the optical axis raised to a power that is greater than two.

Abstract: An ophthalmic toric lens to be worn on an eye or implanted inside of an eye, the lens includes an anterior surface, a posterior surface, and a toric shape formed into one of the anterior and posterior surfaces, the toric shape comprising two non-spherical principle meridians each having a region within an annular area of optical zone and the region of one principle meridian being configured for producing a longitudinal ray aberration of a different sign than a longitudinal ray aberration sign from the region of another principle meridian.