Abstract: The invention provides a lens useful in correction of low and high order ocular wavefront aberrations order aberrations, and methods for designing and producing the lens, in which excessive variations in lens thickness are minimized.

Abstract: The invention provides methods for designing ophthalmic lenses, and lenses produced by this method, which lenses corrects both low order and high order wavefront aberrations of the lens wearer's eyes.

Abstract: A forward leaning stadium seat having a padded seat; a vertical support sleeve with an arm support device and quick release locking clasp to allow quick and easy up and down positioning of the arm support device and an adjustable hub to stop the forward and backward movement of the vertical support device at prescribed locations within a prescribed arc of travel.

Abstract: An apparatus and method for measuring wavefront aberrations. The apparatus comprises a reflecting device for reflecting selected portions of the wavefront, an imaging device for capturing information related to the selected portions, and a processor for calculating aberrations of the wavefront from the captured information. The method comprises reflecting selected portions of a wavefront onto the imaging device, capturing information related to the selected portions, and processing the captured information to derive the aberrations.

Abstract: The invention provides methods for designing lenses useful for correcting presbyopia that permits variation of the speed of the power change from distance to near vision power or near to distance vision power. The rate of change may be symmetrical around the midpoint or faster or slower on either side of the midpoint.

Abstract: An apparatus and method for measuring wavefront aberrations. The apparatus comprises a reflecting device for reflecting selected portions of the wavefront, an imaging device for capturing information related to the selected portions, and a processor for calculating aberrations of the wavefront from the captured information. The method comprises reflecting selected portions of a wavefront onto the imaging device, capturing information related to the selected portions, and processing the captured information to derive the aberrations.

Abstract: An apparatus and method for measuring wavefront aberrations. The apparatus comprises a reflecting device for reflecting selected portions of the wavefront, an imaging device for capturing information related to the selected portions, and a processor for calculating aberrations of the wavefront from the captured information. The method comprises reflecting selected portions of a wavefront onto the imaging device, capturing information related to the selected portions, and processing the captured information to derive the aberrations.

Abstract: A portable forward leaning seating device to be used on a bleacher at sporting events to provide the user with superior support to that portion of his back which is most susceptible to fatigue and pain. The device consists of a padded seat (10) attached to a seat frame (12) which is securely attached to the bleacher by a spring loaded hook (42). The user sits on the padded seat (10) by facing the sporting event with the adjustable vertical support sleave (14) positioned between the user's thighs. The user rests his arms on the padded horizontal arm rests (16) which are positioned using the adjusting knob (32) and spring loaded tab (38) in such a way to provide comfortable support to the torso of the user in a forward leaning fashion. The lock clasp (20) serves to lock the vertical support armature (18) securely in place.

Abstract: The invention provides a method for designing lenses and lenses produced thereby in which method locally fitted Chebyshev polynomials are used to design one or more of the lens' surfaces.

Abstract: A method is provided which is used to design soft contact lens via corneal topographic analysis. The topography of the cornea is matched to a corresponding topography of a soft contact lens. A geometrical transformation which maps the corneal elevation onto the back surface of an unflexed soft contact lens is used to minimize errors induced by flexure of the lens. The mapping transformation takes into account the effects of flexure. As a result, the contact lens has a back surface with a curvature which matches the specific elevations of the cornea, while the front surface can be spherical or any desired symmetrical or asymmetrical shape.

Abstract: A portable forward leaning seating device to be used on a bleacher at sporting events to provide the user with superior support to that portion of his back which is most susceptible to fatigue and pain. The device consists of a padded seat (10) attached to a seat frame (12) which is securely attached to the bleacher by a spring loaded hook (42). The user sits on the padded seat (10) by facing the sporting event with the adjustable vertical support sleave (14) positioned between the user's thighs. The user rests his arms on the padded horizontal arm rests (16) which are positioned using the adjusting knob (32) and spring loaded tab (38) in such a way to provide comfortable support to the torso of the user in a forward leaning fashion. The lock clasp (20) serves to lock the vertical support armature (18) securely in place.

Abstract: The present provides lenses in which the one surface incorporates wavefront aberration correction as well as corneal topographic data. Additionally, the invention provides methods for manufacturing such lenses.

Abstract: The invention provides contact lenses that incorporate a coaxial stabilization zone to stabilize the orientation of the lens in relation to the eye.

Abstract: A system and method is provided for integrating corneal topographic data and ocular wavefront data with primary ametropia measurements to create a soft contact lens design. Corneal topographic data is used to design a better fitting soft contact lens by achieving a contact lens back surface which is uniquely matched to a particular corneal topography, or which is an averaged shape based on the particular corneal topography. In the case of a uniquely matched contact lens back surface, the unique back surface design also corrects for the primary and higher order optical aberrations of the cornea. Additionally, ocular wavefront analysis is used to determine the total optical aberration present in the eye. The total optical aberration, less any corneal optical aberration corrected utilizing the contact lens back surface, is corrected via the contact lens front surface design.