With the increase in visual demand from smartphones, computers, tablets, and e-readers, digital eye strain and computer vision syndrome has become much more prevalent. 

According to the American Optometric Association, eyestrain at the computer affects more than 70% of the 143 million Americans who use the computer daily. Increasingly, children are looking at screens whether it be in school or at home. Prolonged computer use can stress a child's eye and can have effects on visual development. 
 
The AOA recommends seeing a doctor of optometry for further evaluation if consumers answer yes to any of the following questions: 

  • Do you experience eyestrain or headaches during or after viewing? 
  • Do you feel nauseated or dizzy during or after viewing? 
  • Are you more comfortable viewing 2D TV or movies instead of 3D TV/movies? 
  • Is it difficult for your eyes to adjust back to normal after watching 3D TV/movies? 
  • Do other people seem to be enjoying the 3D viewing experience more than you? 

Computer eye strain and computer vision syndrome are caused by our eyes and brain reacting differently to characters on a computer screen than they do to printed characters. Our eyes have little problem focusing on printed material that has dense black characters with well-defined edges. But characters on a computer screen don't have the same degree of contrast and definition. 

Words and images on a computer screen are created by combinations of tiny points of light (pixels), which are brightest at the center and diminish in intensity toward their edges. This makes it more difficult for our eyes to maintain focus on them. Instead, our eyes want to drift to a reduced level of focusing called the "resting point of accommodation" or RPA. 

Our eyes involuntarily move to the RPA and then strain to regain focus on the screen. This continuous flexing of the eyes' focusing muscles creates the fatigue and eye strain that commonly occur during and after computer use. 

Our doctors will evaluate your visual system to determine if computer glasses or doing eye exercises may be appropriate measures to address your needs. In addition, we can help determine the most ergonomic set up for you to alleviate some of your symptoms.  

From http://www.allaboutvision.com/cvs/faqs.htm 

 

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