Note: Single-source report; awaiting corroboration.
Eye discomfort—including tiredness, dryness, or aching—can result from various causes, with prolonged visual tasks a significant factor. Extended screen time on computers or handheld devices can strain the eyes. Normal aging is also a contributor.
Decreased blinking during tasks like computer work or reading is a major cause of eye dryness and discomfort. People over age 50, women, and contact lens wearers are more prone to dryness. Certain medications and health conditions can increase eye dryness. Environmental factors such as direct air from fans or car vents, smoke, and wind may worsen symptoms.
With age, focusing on close objects becomes harder—a condition called presbyopia—which typically starts in the 40s and may require reading glasses. Eye muscles must work harder for near vision, leading to fatigue.
Children can also develop eye strain from intense visual tasks and screen use. They may not report issues but might blink forcefully or rub their eyes. Increased screen exposure is linked to higher rates of nearsightedness among children globally.
To relieve eye discomfort, experts recommend the 20-20-20 rule: every 20 minutes, look at something 20 feet away for 20 seconds. Encouraging children to spend more time outdoors focusing on distant objects may also help lower nearsightedness risk.
Taking regular screen breaks and focusing on distant objects are simple strategies to support eye health for all ages.