These days, it seems hard to find someone who doesn't own some sort of mobile device. We can't deny that these devices are wonderful, because they allow us to stay in touch with whoever we want almost always. Nevertheless because these devices sport small screens, many people usually hold their smartphones a lot closer than they hold books and magazines. Reading off handheld devices can actually create a whole set of problems for your eyes.
Because people tend to hold smart phones so close, our eyes end up working overtime, just to look at text and images. Eventually, research shows this may lead to difficulty with focus and vision, especially for those who already use vision correction, like glasses or lenses. Any eye care professional will tell you that when such individuals spend a lot of time with their phone at a closer than normal distance, the eyes have a rough time correcting for distance. When your eyes work too hard, it generally results in unpleasant headaches as a result of the eyestrain.
There are more symptoms that can result from holding your device too close to your eyes, including dry eyes or blurry vision, because excessive screen time makes you blink less.
What can we do keep our eyes strong, while still using our phones? In order to prevent eyestrain and blurred vision caused by handheld devices, it is recommended to set the text to be as big as possible and try to keep your phone as far from your eyes as you can. It's also recommended to try using your phone for less time, and letting your eyes have regular breaks. We can't give up technology, but it's important to be smart about how we use it, in order to help preserve our vision.