ALEXANDRIA, Va., June 25 -- United States Patent no. 12,336,760, issued on June 24, was assigned to E-SWIN DEVELOPPEMENT (Houdan, France).
"Method for evaluating the stability of a tear film" 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: "Method for measuring the stability of a tear film of a patient using a device including a backlit translucent plate provided with a test chart positioned in front of at least one eye of the patient, at least one digital photographic camera connected to a computing system, and a camera lens pointing towards the patient's eye to photograph ...