ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,710,669, issued on Aug. 18, was assigned to The Hong Kong Polytechnic University (Hong Kong).
"Lens and method for retarding myopia progression" was invented by Siu Yin Lam (Hong Kong), Yan Yin Tse (Hong Kong) and Chi Ho To (Hong Kong).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided herein is concentric annular multi-zone lens for retarding myopia progression in a human eye. The lens comprises: a plurality of correcting zones for forming a focused image on a retina of the human eye so as to correct refractive error of the human eye, wherein the correcting zone having a similar refractive power; a plurality of defocusing zones for forming images a...