When we were younger, our mom always warned us about sitting too close to the television or being addicted to computer games. Turns out, she wasn't entirely off the mark. Today, the average adult American spends about eight hours in front of a screen. One of the biggest eye-burn culprits is planting yourself in front of a screen. Our bodies and eyes weren't designed for modern digital lifestyles. Computer vision syndrome or CVS - also known as digital eye strain - has become an increasingly common condition amongst most working adults. Some symptoms such as headaches, blurry vision, dry eyes, and shoulder and neck pain may be experienced.