Experts Provide Tips for Avoiding Computer-linked Vision Trouble — VOA Learning English
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Computer, or digital, screens are common at work, homes, schools, and stores. An estimated 104 million Americans of working age spend more than seven hours a day in front of screens, the American Optometric Association says. All that screen time can cause harm.
Too much screen viewing can lead to dry or watery eyes, unclear vision and headaches. It can also lead to vision conditions including myopia, or nearsightedness, especially in children. Some technology workers even describe short times of dizziness or vertigo when they look at screens for too long.
However, exposure to blue light from digital screens has not been shown to cause permanent eye damage, the American Academy of…
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