Method and system for making ophthalmic measurements
US9198576B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2013 |
| Grant date | Dec 1, 2015 |
| Priority date | — |
| Expiry date | Jun 25, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C13/005
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of taking an ophthalmic measurement is carried out with an electronic handheld device having a touchscreen display and a camera unit for producing digital photographic images with the handheld device that are displayed on the touchscreen display in real time. The handheld device has a orientation sensing unit for determining the orientation of the handheld device. A subject is positioned wearing a spectacle frame on the subject's head at a position so that real time images of the subject's head with the spectacle frame from the camera unit are displayed in the touchscreen display. The electronic handheld device is moved with the real time images of the subject's head and eyewear being displayed within the display until the orientation sensing unit of the handheld device measures that the handheld device is at a selected oriented position. An image of the subject's head and eyewear are automatically captured and stored on the electronic handheld device at the moment the orientating sensing unit measures that the handheld device is at the selected oriented position. At least one ophthalmic measurement is made using the captured image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.