Method for determining the power of an intraocular lens used for the treatment of myopia
US7044604B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Sep 11, 2003 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Dec 10, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/16
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of deriving a prediction model and calculating a predicted lens power to provide a desired post-operative spherical equivalent to correct myopia in a phakic eye of a patient using an intraocular lens includes measuring and determining the predictive significance of certain pre-operative characteristics of the eye, including cycloplegic and manifest spherical equivalent, vertex distance, anterior chamber depth, axial length, and keratometry. The prediction model is derived using multiple regression analysis on the pre-operative and post operative data. Measured data corresponding to a particular patient is used in the lens power prediction model to calculate the predicted lens power for implantation in the patient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.