High ion and metabolite flux lenses and materials
US7988729B2 · kind B2 · utility
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30References
13Claims
0Family size
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Inventor
Key dates
| Filing date | Jul 16, 2008 |
| Grant date | Aug 2, 2011 |
| Priority date | — |
| Expiry date | Oct 16, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F220/40
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An exemplary embodiment provides a biocompatible polymer composition suitable for making intraocular lenses, especially posterior chamber phakic lenses, that includes a hydrogel having an equilibrium water content of less than about 55 wt. %. The hydrogel has a refractive index greater than about 1.41 and a sodium ion flux between about 16 to about 20 μeq-mm/hr/cm2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.