The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 10, 2026

Filed:

Nov. 05, 2021
Applicant:

Indizen Optical Technologies of America, Llc, Torrance, CA (US);

Inventors:

Claudia Irazusta, Madrid, ES;

Eduardo Pascual, Madrid, ES;

José Alonso Fernández, Madrid, ES;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61B 3/02 (2006.01); A61B 3/00 (2006.01); A61B 3/032 (2006.01); A61B 3/04 (2006.01); A61B 3/10 (2006.01); A61B 3/12 (2006.01); G02C 7/02 (2006.01); G06N 3/045 (2023.01);
U.S. Cl.
CPC ...
A61B 3/0025 (2013.01); A61B 3/032 (2013.01); A61B 3/04 (2013.01); A61B 3/1015 (2013.01); G02C 7/027 (2013.01); G06N 3/045 (2023.01);
Abstract

Systems and methods for visual acuity calculation including consideration of a combination of ocular aberrations and lens aberrations are disclosed. One method includes obtaining ocular aberration data and introducing a correction in the defocus term of the ocular aberration data to account for longitudinal chromatic aberration. Lens aberration data is obtained, including performing raytracing through the ophthalmic lens of the patient. Correction to tilt and defocus terms of the lens aberration data is made to account for transverse and longitudinal chromatic aberrations. Polychromatic Point Spread Functions (PSFs) associated to the ocular aberration data and lens aberration data are used to generate retinal images. Retinal sampling is applied to the retinal images, followed by filtering and normalizing the retinal images is also performed. Finally, a maximum visual acuity value is determined. The methods are performed using one or more computing devices.


Find Patent Forward Citations

Irazusta, Claudia. (2026). Visual acuity determination (U.S. Patent No. 12543944). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12543944

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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