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.
Patent No.:
Date of Patent:
Dec. 20, 2022
Filed:
Apr. 29, 2020
Applicant:
Junzhong Liang, Fremont, CA (US);
Inventor:
Junzhong Liang, Fremont, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F 2/14 (2006.01); A61F 2/16 (2006.01); G02C 7/02 (2006.01); G02C 7/04 (2006.01); A61F 9/008 (2006.01); G02C 7/06 (2006.01);
U.S. Cl.
CPC ...
A61F 2/147 (2013.01); A61F 2/1613 (2013.01); A61F 9/00808 (2013.01); G02C 7/02 (2013.01); G02C 7/028 (2013.01); G02C 7/042 (2013.01); G02C 7/044 (2013.01); G02C 7/061 (2013.01); A61F 2/1618 (2013.01); A61F 2/1637 (2013.01); A61F 2/1643 (2015.04); A61F 9/00812 (2013.01); A61F 2009/0088 (2013.01); A61F 2009/00872 (2013.01);
Abstract
Methods for treating presbyopia in a patient's eye involve inducing spherical aberration in a central area of the pupil. In embodiments, refractive properties of an eye are measured to obtain a baseline refractive correction. A lens for wearing on the eye is provided, or an optical device is implanted in the eye, or corneal tissue is removed to create spherical aberration or a distribution of spherical aberrations beyond the baseline refractive correction in the central area of the pupil. The central area of the pupil has a diameter of between 1.5 mm and 4.0 mm and has negligible spherical aberration without the treatment.