Toric contact lens stabilization design based on thickness gradients orthogonal to eyelid margin
US11327341B2 · kind B2 · utility
1Cited by
1References
23Claims
0Family size
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Inventor
Key dates
| Filing date | Jun 14, 2019 |
| Grant date | May 10, 2022 |
| Priority date | — |
| Expiry date | Dec 3, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Ophthalmic lenses are described herein. An example ophthalmic lens may comprise a first surface. The example ophthalmic lens may comprise a second surface disposed opposite the first surface and defining a volume of lens material therebetween. A thickness profile of the volume of lens material may be derived from one or more eyelid profiles such that a thickness gradient of the volume of lens material is oriented to be substantially orthogonal to a target eyelid margin shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.