ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,745,905, issued on Sept. 29, was assigned to AMO Development LLC (Irvine, Calif.).

"Methods and systems for determining change in eye position between successive eye measurements" was invented by Richard J. Copland (Albuquerque, N.M.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A measurement instrument and method: produce light having a linear shape; direct the light toward an eye and provide returned light, having the linear shape, from the eye to a split-prism; split the returned light into first and second linear segments and image them onto an image sensor; determine a first lateral offset between the first and second linear segments on the image...