Abstract: An apparatus for the automated production of ophthalmic lenses, particularly compound lenses having a plastic coating on a plastic lens is described. A mold, after rotational orientation, is placed in a gimbal assembly to provide for the proper tilt. This gimbal assembly forms part of a fixture attached to an indexing means which moves for complete assembly of a molding fixture and then moves the molding fixture through a chamber to cure the resin. A preform, after rotational orientation, is held, by a preform gripper placed above the mold, and with sufficient clearance between the mold and the preform to allow the correct resin thickness during the curing portion of the process. The fixture is also provided with members to firmly grip the preform gripper so as to maintain its orientation throughout the curing process.

Abstract: The invention provides a rotationally stabilized contact lens that takes into account the natural shape of the lens wearer's cornea in the design of the base curve of the lens. The invention provides an effective method, and lenses incorporating that method, for on-eye lens stabilization that eliminates the need for increasing the lens' peripheral thickness to stabilize the lens, resulting in a more comfortable lens on-eye. Additionally, the invention provides a flexible base curve design method that results in improved lens fit and centration.

Abstract: A pre-cutter or edger machine for processing the periphery of an optic is provided. The pre-cutter or edger machine of the present invention is advantageous in that it provides a machine that eliminates the need to mount the optic on a block, is completely automatic, and has a cycle time of approximately 10 seconds. The machine also is capable of pre-cutting or edging an optic to any of a number of different diameters or shapes with or without the need for traced data. The machine cleans the optic automatically and maintains the edge processing stations substantially free from debris.

Abstract: 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 partial or complete elimination of the distance vision zone.

Abstract: The invention provides contact lenses designed to accommodate lens wearer's that may develop dry eye. The lenses of the invention are of a design that decreases or substantially eliminates the occurrence of dry eye in the lens wearer.

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.

Abstract: The invention provides contact lenses with off-axis bevels. The bevels aid in increasing stability of the lens on the eye and form a smooth junction with the lenticular zone of the lens.

Abstract: The invention provides lenses incorporating both birefringent material and zones of more than one optical power, or focal length.

Abstract: The invention provides methods for producing ophthalmic lens by casting resin layers onto an optical preform. Resin containment in the mold assembly is achieved by the use of a high viscosity resin bead.

Abstract: The invention provides contact lenses that have contoured lens edges that improve lens handling and comfort.

Abstract: The invention provides lenses, as well as methods for their design and production, in which the power distribution between the distance and near vision zone substantially meets the requirements of the wearer's eye path and refractive power. This power distribution is obtained without introducing additional unwanted astigmatism.

Abstract: 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.

Abstract: 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 surface, the surface geometries of which are defined by segments of a size suitable to be defined by a tenth order x,y polynomial with Zernike coefficients.

Abstract: The invention provides a pair of multifocal lenses for the correction of presbyopia. The dominant eye lens has an optic zone with the distance optical power required and additional zones of either or both distance and near optical power. The non-dominant eye lens has an optic zone with the near optical power and additional zones of either or both near and distance optical power.

Abstract: 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.

Abstract: 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 conventional progressive addition lenses. This result is achieved by combining two or more progressive addition surfaces, which surfaces in combination provide the dioptric add power of the lens.

Abstract: The invention provides progressive lenses with reduced unwanted astigmatism obtained by combining progressive addition and regressive surfaces. The unwanted astigmatisms of the progressive and regressive surfaces act to cancel each other. Thus, the lens has reduced unwanted astigmatism compared to prior art lenses of comparable dioptric add power.

Abstract: 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 conventional progressive addition lenses. This result is achieved by combining two or more progressive addition surfaces, which surfaces in combination provide the dioptric add power of the lens.

Abstract: The present provides progressive addition lens designs and lenses in which unwanted lens astigmatism is reduced as compared to conventional progressive addition lenses.

Abstract: This invention provide silicone-based, biomedical devices that exhibit improved wettability as well as biocompatability through the use of functional silane agents. More specifically, the invention provides devices at least one surface of which has a functional silane coupling agent and hydrophilic polymer.