Study of Short-Term Effects on Eye Choroidal Thickness Using Three Prototype Soft Contact Lenses in Adults with Myopia Aged 18 to 25

What this Trial Is About

Researchers are studying how three different prototype soft contact lenses affect the thickness of the choroid, a layer in the eye, in people with myopia nearsightedness. This study aims to observe short-term changes in choroidal thickness after wearing each lens for a short period. The trial is designed as a randomized, double-masked study to compare the effects of these lenses. Participants will wear each of the three prototype soft contact lensesLens A, Lens B, and Lens Cfor one hour each. The study uses a randomized order for lens wear, and each lens is evaluated separately. There is no placebo group all participants will experience the three experimental lenses during the study. During the study, participants will undergo eye measurements to assess the change in choroidal thickness from baseline after one hour of wearing each lens. Researchers will monitor adherence to instructions such as avoiding caffeine, alcohol, smoking, or recreational cannabis before visits. The primary outcome is the change in choroidal thickness after lens wear. The study will continue until December 2025 and includes regular measurement visits following a set schedule.

Measuring Changes In Choroidal Thickness Induced By Prototype Soft Contact Lenses Worn For 1 Hour