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US 6,283,595 B1Granted
Pinhole presbyopic contact lenses
OwnerJoseph L. Bregerinventor
Life of this patent
Estimating the term…
Abstract
A bifocal simultaneous vision contact lens includes a central vision element and an outer vision element formed in a single, unitary, monolithic body of contact lens material. The central vision element has a diameter ranging between 0.85 and 1.75 mm, preferably ranging between 1 and 1.5 mm and most preferably ranging between 0.90 and 1.1 mm.
Claims10
A two element bifocal simultaneous vision contact lens to correct vision of a wearer's eye comprising:
- a single, unitary, monolithic body of transparent contact lens material having opposed anterior and posterior major surfaces;
- a central vision element formed in the center anterior surface of the body as an integral portion thereof, to provide a first vision correction of near optical power;
- an outer vision element formed in the anterior surface of the body, in direct contact with and surrounding said central vision element and extending to the peripheral curve at the edge of the contact lens, to provide a second vision correction of distance optical power to the remainder of the wearers eye;
- said central vision element having a diameter no greater than 1.75 mm.;
- and
- said outer vision element cooperating with said central vision element so that said central vision element comprises a pinhole lens.
3 more elements
Dependencies are inferred from the claim text.