Method and a device for automatically measuring at least one refractive characteristic of both eyes of an individual
US8708490B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2010 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | Mar 28, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C13/005
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for automatically measuring at least one refractive characteristic of both eyes of a person, includes: a) adjusting at least one position of a person's head, in a reference system connected to an image capture apparatus set up to convert each captured image into a signal representing the image; b) illuminating both eyes with at least one light source, whose position is known within the reference system; c) measuring at least one sight direction parameter connected to the sight direction of the person within a reference system connected to the head thereof; d) capturing at least one retinal reflection image from the light source onto the retina of both eyes; f) determining, from the captured image in Step d), the refractive characteristic of the eyes; and h) storing the sight direction parameter in relation to the predetermined refractive characteristic during the image capture in Step c).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.