Measurement of the lipid and aqueous layers of a tear film
US9615735B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Nov 19, 2014 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Dec 17, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/113
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Systems and methods for determining thickness of lipid and aqueous layers of a tear film in which a spectrum array is generated from optical coherence tomography and input into a statistical estimator, which determines the thickness of the lipid and/or aqueous layers at a nanometer resolution based on the inputted spectrum and other information, such as information about a laser intensity noise, Poisson noise, and dark noise associated with the OCT.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.