Contact lenses with microchannels
US6779888B2 · kind B2 · utility
121Cited by
15References
47Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 20, 2001 |
| Grant date | Aug 24, 2004 |
| Priority date | — |
| Expiry date | Nov 23, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Contact lenses for use in eyes are provided and include a lens body and a plurality of radially extending microchannels defined in the posterior face of the lens body. In one embodiment, the microchannels are 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 without substantially interfering with the optical zone function of the lens body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.