Eye strain is common and usually occurs when the eyes are overused, particularly during prolonged reading, computer use, smartphone use or driving.
Symptoms can include sore or irritated eyes, dryness or excessive watering, blurred or double vision, difficulty focusing, increased sensitivity to light, headaches and discomfort in the neck, shoulders or back.
To prevent or ease eye strain, WebMD recommends taking regular breaks from close-up tasks.
The 20-20-20 rule involves looking at something about 20 feet away for 20 seconds every 20 minutes. Blinking regularly can help keep the eyes moist.
WebMD also advises positioning computer screens about 20–26 inches from the eyes and slightly below eye level, reducing glare and maintaining suitable lighting.
Taking longer breaks, using artificial tears for dryness and having regular eye examinations can also help
