Photochromic soft contact lens with cosmetic and efficacy considerations
US11092822B2 · kind B2 · utility
1Cited by
2References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 2019 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Oct 14, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photochromic ophthalmic lens may comprise a main body comprising an optical zone and a peripheral zone disposed adjacent the optical zone, wherein one or more of the optical zone and the peripheral zone comprises a photochromic dye, wherein the ophthalmic lens has a thickness profile that is configured based on cosmetic appearance associated with a target level of transmission (% T), and wherein at least a portion of the thickness profile is the same across two or more stock keeping units (SKU), each of the two or more SKU having a different target prescription.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.