Vision prescription, measuring method and measuring apparatus, and a lens production method
US9164295B2 · kind B2 · utility
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2References
10Claims
0Family size
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Key dates
| Filing date | Oct 3, 2011 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Jan 12, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/061
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for determining parameters of the vision of an eye of a patient. The method comprises: constituting a part of a process of making a prescription for a corresponding lens via which the patient is expected to gaze in at least two different directions; and measuring in one of the two directions all of the following parameters of the eye's vision: sphere power, cylinder and cylinder axis, and measuring in the other of the two directions at least two of said parameters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.