Zone extension systems and methods
US9658468B2 · kind B2 · utility
22Cited by
32References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 13, 2015 |
| Grant date | May 23, 2017 |
| Priority date | — |
| Expiry date | May 28, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2009/00897
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Wavefront measurements of eyes are often taken when the pupil is in a first configuration in an evaluation context. The results can be represented by a set of basis function coefficients. Prescriptive treatments are often applied in a treatment context, which is different from the evaluation context. Hence, the patient pupil can be in a different, second configuration, during treatment. Systems and methods are provided for determining a transformed set of basis function coefficients, based on a difference between the first and second configurations, which can be used to establish the vision treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.