Soft contact lenses displaying superior on-eye comfort
US7461937B2 · kind B2 · utility
114Cited by
101References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 14, 2005 |
| Grant date | Dec 9, 2008 |
| Priority date | — |
| Expiry date | Jan 14, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D11/00067
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to soft contact lenses having an overall comfort preference of at least about 2 to 1 as compared to an Acuvue® contact lens and measured after one week of daily wear. The present invention further relates to a soft contact lens comprising an oxygen transmissibility greater than about 70 barrers/mm and physical properties suitable to provide wearer comfort over at least about 9 hours in at least about 80% of wearers, as measured in a randomized, double masked clinical study.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.