ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,502,069, issued on Dec. 23, was assigned to E-SWIN DEVELOPMENT (Houdan, France).

"Method for measuring a tear meniscus" was invented by Yves-Vincent Brottier (Adainville, France), Arnaud Obin (Paray-Douaville, France) and Nelson Perrin (Sainte-Mesme, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for measuring a tear meniscus including: instilling fluorescein on the surface of a patient's eye to be examined, illuminating the eye to be examined with blue light and capturing an image of the eye to be examined, the image including non-fluorescent blue zones in the absence of fluorescein and fluorescent green zones in the presence of fluores...