公开(公告)号：US20230255474A1

公开(公告)日：2023-08-17

申请号：US18005271

申请日：2021-07-15

Applicant: Essilor International

Inventor： Stéphane BOUTINON ,  Marius PELOUX ,  Marion SWITAL ,  Philippe PINAULT ,  Marie-Virginie BERBET

IPC: A61B3/032 ,  A61B3/00 ,  G06T7/50 ,  G06T3/40

CPC classification number: A61B3/032 ,  A61B3/0033 ,  A61B3/005 ,  G06T7/50 ,  G06T3/40 ,  A61B2090/061

Abstract: A method for evaluating the visual acuity of a person using a mobile device having at least a front camera and a screen, the method including a user positioning step during which the user of a mobile device positions himself in front of a mirror at a predefined distance d/2, a mobile device positioning step during which the mobile device is positioned with the front camera of the mobile device facing the mirror, a distance measuring step during which a distance d between the front camera of the mobile device and a virtual image of the mobile device in the mirror is measured, a displaying step during which the screen of the mobile device displays optotypes, and an evaluation step during which the visual acuity of the user is evaluated.