Metrics to predict subjective impact of eye's wave aberration
US7357509B2 · kind B2 · utility
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Key dates
| Filing date | Apr 28, 2004 |
| Grant date | Apr 15, 2008 |
| Priority date | — |
| Expiry date | Dec 12, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B3/0025
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Several metrics to predict the subjective impact of the eye's wavefront aberrations are presented. The metrics can be based on RMS wavefront errors or slopes, the area of the critical pupil, a curvature parameter, the point spread function, the optical transfer function, or the like. Other techniques include the fitting of a sphero-cylindrical surface, the use of multivariate metrics, and customization of the metric for patient characteristics such as age.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.