Refractive multifocal intraocular lens with optimised optical quality in a range of focus and method to produce it
US10226327B2 · kind B2 · utility
1Cited by
10References
18Claims
0Family size
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Key dates
| Filing date | Dec 27, 2013 |
| Grant date | Mar 12, 2019 |
| Priority date | — |
| Expiry date | Dec 27, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/35261
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention describes a refractive multifocal intraocular lens with aspheric geometry on both surfaces in such a way that the map of local optical strength of the lens, combined with the cornea, has a central region of intermediate optical strength surrounded by a ring of maximum optical strength, with a smooth transition between the two, after which it alternates smoothly between rings of varying strengths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.