Digital screens place constant demand on the eye muscles due to prolonged focusing, glare, screen brightness, and continuous visual concentration. Unlike printed text, screens often reduce contrast and increase visual effort, making the eyes work harder over time.
One major reason behind digital eye strain is reduced blinking while using devices, which causes the eyes to become dry and irritated. Blue light exposure, poor posture, and improper screen distance can further worsen visual fatigue and discomfort.
Extended screen usage may also lead to temporary blurred vision, sensitivity to light, eye heaviness, and reduced focusing flexibility, especially after uninterrupted digital activity.