Contact lenses with blended microchannels
AssigneeOcular Sciences, Inc.
InventorsJ. Christopher Marmo, Gregg A. Dean
Life of this patent
Estimating the term…
Abstract
Contact lenses for use in eyes are provided and include a lens body and a plurality of microchannels defined in a posterior face of the lens body. The microchannels are structured to promote effective tear fluid exchange between an exposed surface of the eye and a surface of the eye covered by the lens body. Each of the microchannels preferably includes a substantially junctionless, convex surface along a major portion of a length of the microchannel.
Claims52
A contact lens for use on an eye, the lens comprising:
- a lens body having a posterior face and an anterior face;
- and
- a plurality of microchannels defined in the posterior face of the lens body,
- the lens body being structured to reduce the time to exchange 95% of tear fluid by at least about 5% when the contact lens is worn on an eye relative to a substantially identical contact lens without a plurality of microchannels.
A contact lens for use on an eye, the lens comprising:
- a lens body having a posterior face, and an anterior face;
- and
- a plurality of microchannels defined in the posterior face of the lens body, each of the microchannels including a curved surface generally other than concave relative to the anterior face, the microchannels sized and adapted to promote effective tear fluid exchange between an exposed surface of the eye and a surface of the eye covered by the lens body.
A contact lens for use on an eye, the lens comprising:
- a lens body having a posterior face and an anterior face;
- a plurality of microchannels defined in the posterior face of the lens body, each of the microchannels being located in a substantially abutting relationship to one or more of the microchannels, the microchannels sized and adapted to promote effective tear fluid exchange between an exposed surface of the eye and a surface of the eye covered by the lens body.
A contact lens for use on an eye, the lens comprising:
- a lens body structured to provide enhanced tear mixing of post lens tear film of a person of a desired group of people when worn on an eye of the person relative to a substantially identical contact lens worn by another person of a different group of people.
The contact lens of 47 wherein the lens body is structured to enhance tear mixing when the contact lens is worn on an eye of an Asian person relative to tear mixing provided by an identically structured contact lens worn on an eye of a non-Asian person.
The contact lens of 47 wherein the lens body is structured to enhance tear mixing when the contact lens is worn on an eye of a non-Asian person relative to tear mixing provided by an identically structured contact lens worn on an eye of an Asian person.
Dependencies are inferred from the claim text.