Pupil size-independent lens design and method for preventing and/or slowing myopia progression
US9625739B2 · kind B2 · utility
18Cited by
1References
2Claims
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Key dates
| Filing date | Aug 20, 2014 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | Sep 17, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/24
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lens includes a center of the ophthalmic lens having a negative power that provides foveal vision correction for myopia; a first peripheral zone surrounding the center having a power that gradually increases to a first peak having a dioptric power that is more positive than at the center; and a second peripheral zone surrounding the first peripheral zone and having a second peak having a dioptric power that is more positive than at the center and that is different than the power at the first peak. The power profile slows, retards, or prevents myopia progression independent of pupil size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.