Efficacy of Myopia-control Lenses in a Population of Young Adults : the OPTIMA Study

The goal of this clinical trial is to learn if myopia-control eyeglass lenses (Essilor® Stellest® 2.0) can slow down the progression of short-sightedness (myopia) in young adults, compared with standard single-vision lenses. The main questions it aims to answer are: Does wearing Stellest® 2.0 lenses slow the increase in eye length (axial length) after 1 year, compared with standard lenses? Does wearing Stellest® 2.0 lenses reduce the change in glasses prescription and the occurrence of eye complications after 2 years, compared with standard lenses? How well do participants tolerate the Stellest® 2.0 lenses in the first weeks of wear? Researchers will compare Stellest® 2.0 myopia-control lenses to standard single-vision lenses to see if they reduce the worsening of myopia. Participants will: Wear either the study glasses or standard glasses every day, at least 12 hours a day, for 2 years Attend an eye exam and vision check at the start of the study, after 1 year, and after 2 years Complete three phone check-ins during the first 3 months to report on comfort and how well they tolerate their glasses