ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,027, issued on March 31, was assigned to Carl Zeiss Meditec AG (jena, Germany).

"Method for centering a contact glass and refractive surgical laser system" was invented by Andreas Weyhausen (Jena, Germany), Mark Bischoff (Jena, Germany), Gregor Stobrawa (Jena, Germany) and Marco Lehnort (Jena, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for centering a contact glass relative to a patient's eye includes a) providing a fixation light through a contact glass to align the patient's eye by fixating on the fixation light; b) detecting an image of light pattern that is imaged on the eye's surface; c) presenting the image over the eye w...