Control device responsive to lid fissure width
US10444543B2 · kind B2 · utility
1Cited by
6References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 24, 2017 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Jan 24, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/18
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An accommodating contact lens comprises a control device, which comprises one or more eyelid engagement structures. The eyelid engagement structures are configured to move with the eyelid relative to the contact lens. The eyelid engagement structure is coupled to the eyelid and to the accommodating contact lens, which may comprise a fluidic module having inner and outer fluid reservoirs. The eyelid engagement structure is configured to respond to the narrowing or widening of the eyelid fissure, moving a fluid in or out of the inner reservoir to accommodate near or far vision.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.