Johnson & Johnson Vision Products Inc.

Robert Labelle

Jeffrey H Roffman

Edgar V Menezes

Carl Crowe

John Scrivener

Michael Francis Widman

Ture Kindt-Larsen

Keith T O'Brien

James J Jen

Mehmet Burduroglu

Jeffrey Longo

The present invention is directed to a composition of polystyrene or polypropylene with at least 0.5% (w/w)of an additive or wetting agent, the article of manufacture comprised thereof, such as a mold for making contact lenses and the mold assembly containing said mold, and the use of such mold so to minimize defects, such as holes, puddles, chips and tears in the lens.

Mold material made with additives

A method of making a multifocal refractive lens to focus light on the retina of the eye. The lens includes a plurality of segments, having different optical powers, at least one for distance vision and another for near. The lens does not require orientation to produce adequate far and near vision and normal stereoscopic effect. One or both of the segments having the optical powers may have aspherical lens surface. The central zone of the lens consists of only one lens segment, providing a clear central axis. Segments of the other optical power border the first segment along a path defined by a semi-circle or hyperbola that extends from one point along the periphery of the adjoining segments to another point along the periphery of the adjoining segments.

Method of making a clear axis, segmented multifocal ophthalmic lens

A method of making multifocal refractive contact lens to focus light on the retina of the eye uses a plurality of at least two of each alternating segments having different optical powers for distance vision and for near. The lens of the invention does not require orientation to produce adequate far and near vision and normal steroscoptic effect. One or both of the segments having the optical powers may have aspherical lens surface. Preferably, the lens has at least one aspherical lens surface and the segments are divided by an arcuate path going from the center of the lens to edge. Such a lens is manufactured by taking lens molds and cutting the molds from the edge through the center to the opposite edge along a predetermined path. The molds are cut so that the segments produced are interchangable and can be fitted together to make a mold that can produce the multifocal refractive contact lens by molding.

Method of manufacturing a segmented multifocal ophthalmic lens

A multifocal refractive lens to focus light on the retina of the eye. The lens is comprised of a plurality of segments, having different optical powers, at least one for distance vision and another for near. The lens does not require orientation to produce adequate far and near vision and normal stereoscopic effect. One or both of the segments having the optical powers may have aspherical lens surface. The central zone of the lens consists of only one lens segment, providing a clear central axis. Segments of the other optical power border the first segment along a path defined by a semi-circle or hyperbola that extends from one point along the periphery of the adjoining segments to another point along the periphery of the adjoining segments.

Clear axis, segmented multifocal ophthalmic lens

A multifocal refractive lens to focus light on the retina of the eye and method of making. The lens is comprised of a plurality of segments, alternating segments having different optical powers. At least for distance vision and another for near. The lens of the invention does not require orientation to produce adequate far and near vision and normal steroscoptic effect. One or both of the segments having the optical powers may have aspherical lens surface. Preferably, the lens has at least one aspherical lens surface and the segments are divided by an arcuate path going from the center of the lens to edge. Such a lens is manufactured by taking lens molds and cutting the molds from the edge through the center to the opposite edge along a predetermined path. The molds are cut so that the segments produced are interchangable and can be fitted together to make a mold that can produce the multifocal refractive contact lens by molding.

Growing community of inventors

Jacksonville, FL, United States of America

Robert Labelle