Years ago, when working Americans began to rely more and more on some sort of keyboard to complete their work, the term "carpal tunnel syndrome" began to crop up everywhere. Now, it has always existed; it's a wrist ailment that can occur via other activities like painting or sewing. But in the last 20 years, computer usage has become common practice in most any business. And we're all typing more than we ever have before. But wrist issues are no longer our only concern. Yep, the eyes have it.