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

Participants in this arm wore blue light-blocking glasses designed to filter out a portion of short-wavelength blue light. These lenses were intended to reduce eye strain and protect against blue light exposure, especially during prolonged screen time. Participants used blue light-blocking glasses consistently throughout the study period to assess their effect on contrast sensitivity and visual fatigue.

Participants in this arm wore standard lenses without any blue light-blocking properties. These lenses allow the full spectrum of visible light to pass through and serve as a baseline control to measure against the blue light-blocking glasses. Participants used these lenses under the same conditions to assess contrast sensitivity and visual fatigue without blue light filtration.