Method for the pre-operative selection of an intraocular lens to be implanted in an eye
US9271829B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 2012 |
| Grant date | Mar 1, 2016 |
| Priority date | — |
| Expiry date | Oct 30, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2240/002
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method for the preoperative selection of an intraocular lens to optimise the results of refractive surgery on the eye. On the basis of an eye model comprising the individual biometric parameters of the eye, potentially suitable IOLs are selected on the basis of their optical parameters such as optical power, asphericity and toricity, and the residual refraction of potentially suitable IOLs is calculated using ray tracing. Various metrics, preferably retinal image metrics, are used to calculate the residual refraction and in order to improve the selection, at least one additional parameter is taken into consideration for the calculation, said calculation taking the postoperative effects of the selected IOL and/or of the surgical technique used into account.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.