Spending hours looking at a computer or phone screen has become inescapable in many workplaces: More than 104 million Americans are exposed to excessive screen time — defined as seven or more hours per day — including about 70% of people who have an office job, according to aEven as few as two hours daily on a device can cause eye problems, says Dr. Steven Reed, an optometrist and president of the AOA.
Getting glasses that block blue light and reflective light, which are available for prescription and non-prescription lenses, can be an effective option for some people to prevent eye strain, too, eye doctors say.Take a brief break regularly to do the following exercise, called the 20-20-20 rule: About every 20 minutes, look up from your screen at an object at least 20 feet away for 20 seconds.
"If you're on your screen until bedtime and then you don't really sleep well, that impacts your overall health significantly," he says.Getting an annual eye exam is important even if you feel like your vision is fine, Reed says. Doctors can find and treat less visible conditions before they get worse.
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