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:
Nov. 28, 2017
Filed:
Dec. 23, 2014
The Hong Kong Polytechnic University, Hong Kong, HK;
The Hong Kong Polytechnic University, Hong Kong, HK;
Abstract
A method for retarding the progression of myopia in a human eye, the method comprising: providing () a concentric annular multi-zone refractive lens including: at least one correcting zone of optical power for correcting () refractive error, and at least one defocusing zone for projecting () at least one non-homogenous defocused image in front of at least a part of retina to inhibit myopic eye growth, the at least one defocusing zone having at least one less negative power; wherein the correcting and defocusing zones are alternated () in the lens and the zones are connected () to each other through integrated progressive transition curves.