Post Market Clinical Study to Compare Vision With Essilor4 AVA22 Lenses Using AVA22 Refraction Protocol Versus Gold Standard Refraction Protocol

What this Trial Is About

Researchers are evaluating new spectacle lenses made with finer increments in lens power prescription to see if they improve visual performance and patient satisfaction compared to traditional lenses. The study focuses on general population adults with refractive errors, aiming to assess the visual benefits and quality-of-life impacts of Essilor4 AVA22 lenses prescribed using the AVA22 refraction protocol versus standard prescription methods. This research could influence future optometric care by exploring the clinical advantages of higher resolution refraction technology. Participants will wear two types of lenses in a crossover design. One group wears the Essilor4 AVA22 lenses for two weeks, then after a two-week break, wears standard lenses for two weeks. The other group follows the reverse order. Both lens types are prescribed using different refraction protocols: the AVA22 protocol for AVA lenses and the gold standard protocol for standard lenses. The study compares visual clarity, comfort, and satisfaction between these lenses. During the study, participants will undergo vision tests and complete questionnaires to evaluate binocular vision quality, refraction accuracy, and subjective vision experience. These assessments occur immediately after each lens-wearing period and throughout the approximately eight-week study. Researchers will monitor preferences for each lens type and measure various aspects of vision including visual acuity and contrast sensitivity. Participants must wear the assigned lenses at least six hours daily during the lens-wearing periods and attend scheduled visits.

Post Marketing Clinical Study on the Efficacy of Lenses From a New Prescription Protocol