Corrective intraocular lens system and intraocular lenses and lens handling device therefor
US6197058A · kind A · utility
Inventor
Key dates
| Filing date | Mar 22, 1999 |
| Grant date | Mar 6, 2001 |
| Priority date | — |
| Expiry date | Mar 22, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2220/0033
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A corrective intraocular lens system comprises a primary intraocular lens for implanting into an individual's aphakic or phakic eye. The primary intraocular lens includes an optic portion having an optical axis and an anterior surface and a posterior surface, and includes attachment means for maintaining the optic portion centered along the optical axis of the individual's eye. The optic portion is formed having a narrow recess or groove formed into the anterior surface adjacent peripheral regions of the optical portion. The recess may extend completely or only partially around the optic. Included is an elastically deformable, corrective secondary intraocular lens having an optic portion with an anterior surface and a posterior surface. The secondary intraocular lens, which provides spherical, cylinder and/or add power to the primary intraocular lens, is formed having a peripheral edge attachment region or edge tab attachment sized to fit into the recess formed in the primary intraocular lens so that secondary intraocular lens is detachably attached to the primary intraocular lens without clamping or any other attachment with the secondary intraocular lens lying along the anterior …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.