Method of determining a refractive power value characterising an ophthalmic lens and corresponding electronic device
US11262596B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2016 |
| Grant date | Mar 1, 2022 |
| Priority date | — |
| Expiry date | Sep 1, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/061
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of determining a refractive power value characterising an ophthalmic lens for correction of an individual's eye ametropia includes: obtaining first data representative of a refraction value and second data representative of a position of the individual's head with respect to a refraction apparatus when the refraction value was determined; determining the refractive power value as a function of the first data and of a relative position, derived the second data, of the refraction apparatus with respect to a centre of rotation of the eye when the refraction value was determined. A corresponding electronic device is also proposed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.