Can Computers Worsen Vision?

You would think that long periods of time spent staring at a computer screen would be harmful to eyesight. Optometrist James Sheedy has put the issue to rest in the following post.

Optometrist James Sheedy says while staring at a computer screen for long hours can cause eye strain, it does not worsen vision. (Kevin McShane/Flickr)

A study out of Australia finds that adults spend more time in front of a screen than they do sleeping. The 1,500 people surveyed spent an average of nine hours per day in front of a television or computer.

What effect does that much screen time have on the eyes? Here & Now’s Jeremy Hobson asks Dr. James Sheedy, who says long hours spent staring at a screen with poor lighting around the screen can cause eye strain, but computers themselves do not worsen vision.


  • James Sheedy, optometrist and professor at Pacific University in Oregon.

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