Fenestrated lens for increased tear flow and method of making the same
US6726322B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2001 |
| Grant date | Apr 27, 2004 |
| Priority date | — |
| Expiry date | Oct 1, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D11/0048
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A fenestrated contact lens having increased tear flow is provided. The fenestrated contact lens includes a lens body adapted for placement adjacent a surface of an eye which has an inner surface and an outer surface. The lens body has a first plurality of fenestrations extending therethrough which are biased to direct a flow of lachrymal fluid from a first location between the surface of the wearer's eye and the inner surface of said contact lens to a second location adjacent the outer surface of the contact lens. The lens body also includes a second plurality of fenestrations extending therethrough, which are biased to direct a flow of lachrymal fluid from a third location adjacent the outer surface of the contact lens to a fourth location between the surface of the eye and the inner surface of said contact lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.