ONLINE DETERMINATION OF A CUSTOMER'S PRESCRIPTION KNOWING HIS PREVIOUS PRESCRIPTION AND USING A MEASUREMENT OR A MODEL OF THE EVOLUTION OF ITS VALUES

摘要

The invention is related to a method for determining an updated visual correction need for designing a new vision correcting device of an individual already having a previous vision correcting device previously designed to correct his/her vision, wherein, in a first step, a previous level of correction of the previous vision correcting device is acquired, in a second step, a current vision acuity parameter of the individual wearing said previous vision correcting device is assessed, and, in a third step, said updated visual correction need is determined based on said previous level of correction of the previous vision correcting device acquired in the first step and on said current vision acuity parameter assessed in the second step. A complementary visual correction need can also be determined.