Systems and methods for customizing adjustable intraocular lenses
Assignee1Co, Inc.
InventorsCharles DeBoer, Yu-Chong Tai, Mark S. Humayun, Sean Caffey
Life of this patent
Estimating the term…
Abstract
The lens geometry and power of an intraocular lens is optimized to provide both distance and near vision correction for a patient. The optimization may be based on one or more measured accommodation-related parameters and one or more estimated accommodation-related parameters. An accommodative amplitude may be predicted based on the measured and estimated accommodation-related parameters, and the optimized the intraocular lens geometry and power established based thereon.
Claims24
A method for customizing geometry and a focusing power of a fluid-filled intraocular lens comprising a shell to provide both distance and near vision correction for a patient, the method comprising:
- a. determining a baseline amount of far-field focal correction for the patient;
- b. measuring at least one accommodation-related parameter for the patient;
- c. estimating at least one accommodation-related parameter for the patient based at least in part on statistical data;
- d. predicting an accommodative amplitude based on the measured and estimated accommodation-related parameters;
- and
- e. determining the intraocular lens geometry and a fill volume and an optical property of the filling fluid contained in the intraocular lens for providing a desired focusing power and accommodative level based at least in part on (i) the baseline correction, (ii) the predicted accommodative amplitude, (iii) a first relationship between the fill volume of the filling fluid and a lens pressure exerted by the filling fluid on the shell, and (iv) a second relationship between the accommodative level and the lens pressure exerted on the shell.
A system for customizing geometry and a focusing power of a fluid-filled intraocular lens comprising a shell to provide both distance and near vision correction for a patient, the system comprising:
- a measuring system for (a) determining a baseline amount of far-field focal correction for the patient and (b) measuring at least one accommodation-related parameter for the patient;
- a memory for storing a database comprising accommodation-related statistical data;
- and
- a processor in operative communication with the measuring system and the memory, the processor being configured to (a) estimate at least one accommodation-related parameter for the patient based at least in part on statistical data;
- (b) predict an accommodative amplitude based on the measured and estimated accommodation-related parameters;
- and (c) determine the intraocular lens geometry and a fill volume and an optical property of the filling fluid contained in the intraocular lens for providing a desired focusing power and accommodative level based at least in part on (i) the baseline correction, (ii) the predicted accommodative amplitude, (iii) a first relationship between the fill volume of the filling fluid and a lens pressure exerted by the filling fluid on the shell, and (iv) a second relationship between the accommodative level and the lens pressure exerted on the shell.
Dependencies are inferred from the claim text.