公开(公告)号：CA3090051A1

公开(公告)日：2019-08-29

申请号：CA3090051

申请日：2019-02-22

Applicant: ESSILOR INT

Inventor： LONGO ADELE ,  VINCENT MARC ,  STARYNKEVITCH HELENE

IPC: A61B3/028 ,  A61B3/032

Abstract: The invention relates to a method for altering the visual performance of a subject using an optical system arranged in front of at least one eye of the subject, and comprising: b) determining an optotype; c) displaying the optotype to the subject in such a way that it is visible by the subject through said optical system; d) assessing the visual performance of the subject viewing the optotype through the optical system; and e) adding a positive or negative altering value of spherical optical power to the optical system. According to the invention, the method comprises, before step b): a) choosing a target value of visual performance; and and in that, at step b), said optotype has a size which is determined depending on said target value of visual performance; - at step e), said altering value of spherical optical power is determined depending on said target value of visual performance.