ALEXANDRIA, Va., June 16 -- United States Patent no. 12,306,473, issued on May 20, was assigned to Vision CRC Ltd. (Sydney).

"Means for controlling the progression of myopia" was invented by Brien Anthony Holden (Kingsford, Australia), Arthur Ho (Coogee, Australia), Padmaja Rajagopal Sankaridurg (Maraubra, Australia), Thomas Arthur Aller (Albany, Calif.) and Earl Leo Smith (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "A contact lens for use in controlling the progression of myopia has a central optical zone approximating the normal diameter of the pupil of the eye that gives clear central vision at distance for the wearer. An annular peripheral optical zone that is substantially outside the diamete...