Multifocal ophthalmic lens with reduced halo size
US6210005A · kind A · utility
163Cited by
68References
37Claims
0Family size
Inventor
Key dates
| Filing date | Feb 4, 1999 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | Feb 4, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0053
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Ophthalmic lenses, for example, intraocular lenses, contact lenses, corneal implant lenses and the like, have multifocal characteristics which provide beneficial reductions in at least the perception of one or more night time visual symptoms such as "halos", and "glare or flare".
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.