US Patent Issued to Welch Allyn on March 3 for "Method to monitor accommodation state during visual testing" (New York Inventor)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,564,321, issued on March 3, was assigned to Welch Allyn Inc. (Skaneateles, N.Y.).

"Method to monitor accommodation state during visual testing" was invented by Vivian Loomis Hunter (Auburn, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A vision screening device displays visual stimuli and captures image(s) of the eye while the visual stimuli is changing over a period of time. The vision screening device uses the images to determine and monitor refractive error, ambient light level(s), pupil size, and gaze angle as the visual stimuli changes over the time period. Based on the refractive error, a determination of hyperopia and/or presbyopia is made....