US Patent Issued to MDCO TECHNOLOGY on Aug. 26 for "Ophthalmic lens for preventing myopia progression and eyeglasses using same" (Chinese Inventors)

ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,399,384, issued on Aug. 26, was assigned to MDCO TECHNOLOGY Ltd. (Hangzhou, China).

"Ophthalmic lens for preventing myopia progression and eyeglasses using same" was invented by Xin Wei (Hangzhou, China) and Zhenhua Song (Hangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to an ophthalmic lens for preventing progression of myopia and to spectacles with the ophthalmic lens. At least one surface of the ophthalmic lens is defined by a superposition of a base sag profile and a perturbation sag profile, and the perturbation sag profile is defined as a product of a first subfunction for defining a perturbation charac...