In the digital age, with our ever-present smartphones, tablets, game consoles, laptops, desktop computers, and even smart television sets, eye strain - or "computer vision syndrome" - is more common than ever. Experts tell us that it only takes 2 hours looking at a screen of any kind to put ourselves at risk for eye strain, yet that minimal amount of time is just a drop in a veritable bucket of every day, 21st century screen time. Thankfully, eye strain is not a serious condition, nor is it unavoidable. By taking the time to learn more about the anatomy of the eye, how the structure processes...