Ocular modeling methods and apparatus
US9220404B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 26, 2010 |
| Grant date | Dec 29, 2015 |
| Priority date | — |
| Expiry date | Mar 26, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2240/002
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method and apparatus for modeling a lens of an eye, comprising: measuring the anterior shape of the eye's cornea; determining direct optical measurements of at least one parameter of the cornea and at least one parameter of the lens; determining the refractive index of the cornea; correcting the optical measurements to account for the effect of the refractive index of the cornea on the direct optical measurements; measuring the aberration of the eye; calculating the refractive index of the lens by combining the corrected measurements and the measured aberration; and further correcting the optical measurements of the lens to account the effect of the refractive index of the lens on the direct optical measurements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.