There’s nothing quite like curling up with a great book. On the other hand, there’s nothing quite as frustrating as not being able to finish your current chapter because your eyes are strained, watery, and feeling tired and achy.

Eye strain, also known as digital eye strain or computer vision syndrome, is a widespread issue that often affects those who spend long hours reading or working on computer screens.

According to the American Optometric Association, an estimated 60% of American adults report experiencing eye strain on a regular basis. The same report found that over 80% of children aged 10-17 also report frequent symptoms of eye strain, but most often after extended use of a digital device.

When you first learn to drive, you are taught to use your peripheral vision to check your mirrors and blind spots, but what exactly is peripheral vision? 

What are the limits to a human’s peripheral vision? If you notice changes in your peripheral vision, is your eye or your brain affected? Most importantly, what types of eye disease or brain conditions result in a loss of peripheral vision?