Effects of Blue of Glasses VS Standard Lenses on Contrast Sensitivity & Visual Fatigue in Myopic & Non-Myopic Adults

Inclusion Criteria: * Adults aged 18-50 years. * Both myopic (with any degree of myopia) and non-myopic adults. * Participants who use computer screens for at least four hours per day. * Individuals currently using corrective lenses or willing to wear study-provided glasses during the experiment. * Individuals willing to complete the study protocol, which includes attending follow-up examinations and filling out visual fatigue questionnaires. Exclusion Criteria: * A history of any serious vision-related condition (such as glaucoma, cataracts, or retinal problems). * Individuals who have already undergone refractive surgery (e.g., LASIK) or other types of eye surgery. * Systemic conditions affecting vision include diabetes, neurological problems, and any other ailment that may impair visual ability. * Taking drugs that are known to impair vision or produce visual tiredness (for example, certain antihistamines and antidepressants). * Pregnant women's visual performance may be affected by hormonal changes. * People with uncorrected vision difficulties cannot use the prescription lenses during study time. * Participants who are allergic or sensitive to lens materials.