ALEXANDRIA, Va., June 16 -- United States Patent no. 12,306,470, issued on May 20, was assigned to University of Rochester (Rochester, N.Y.).

"Extended depth of focus ophthalmic lens designs based on continuous periodic refractive power profile" was invented by Geunyoung Yoon (Houston) and Jiakai Lyu (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method to provide EDoF ophthalmic lens designs based on continuous periodic refractive power profile includes: providing an underlying optical correction lens surface curve; defining a periodic power map to provide a correction which optimizes focus based on a use case of a patient, while still providing a functional DoF over a range of distances; mapping...