Intraocular pressure monitoring contact lens
US12245816B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 29, 2020 |
| Grant date | Mar 11, 2025 |
| Priority date | — |
| Expiry date | Mar 23, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2202/06
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device for non-invasive monitoring and measuring of intraocular pressure (IOP) of a subject includes a flexible lens that fits on the eye and changes curvature in response to a change in curvature of the eye. A microchannel disposed in or on the lens has one or more ends that are open to the atmosphere and an indicator solution is disposed in a portion of the 5 microchannel. The microchannel exhibits a change in volume in response to a change in curvature of the lens, which results in a change in position of the indicator solution in the microchannel. The change in position of the indicator solution in the microchannel is indicative of a change in IOP. The change in position of the indicator solution may be detected in digital images of the lens taken with a camera of a mobile electronic device such 0 as a smartphone or a camera worn by the subject.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.