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Survey Reveals Parents Drastically Underestimate the Time Kids Spend on Electronic Devices
Date:7/22/2014

concerned about the kinds of light everyday electronic devices give off – high-energy, short-wavelength blue and violet light – and how those rays might affect and even age the eyes. Today's smartphones, tablets, LED monitors and even flat screen TVs all give off light in this range, as do cool-light compact fluorescent bulbs. Early research shows that overexposure to blue light could contribute to eye strain and discomfort and may lead to serious conditions such as age-related macular degeneration (AMD), which can cause blindness.

When it comes to protecting eyes and vision from digital eye strain, taking frequent visual breaks is important. Children should make sure they practice the 20-20-20 rule: when using technology or doing near work, take a 20-second break, every 20 minutes and view something 20 feet away. According to the survey, nearly one-third (32 percent) of children go a full hour using technology before they take a visual break instead of every 20 minutes as recommended.

Additionally, children who normally do not require the use of eyeglasses may benefit from glasses prescribed specifically for intermediate distance for computer use. And children who already wear glasses may find their current prescription does not provide optimal vision for viewing a computer screen. An eye doctor can provide recommendations for each individual patient.

The AOA suggests the following guidelines to help prevent or reduce eye and vision problems associated with digital eye strain:

  • Check the height and position of the device. Computer screens should be four to five inches below eye level and 20 to 28 inches away from the eyes. Digital devices should be held a safe distance away from eyes and slightly below eye level.
  • Check for glare on the screen. Windows or other light sources should not be directly visible when sitting
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SOURCE American Optometric Association
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