how to protect your eyes from smart phones

protecting your eyes from smartphone is the greatest challange you face as there are serveral methods now if your using your smart phone on an more light area it doest matter . but blink your eyes more times when you use your device for an long time

its important to reduce the brightness of the phone to low when you use it at night also you can use apps like 

https://play.google.com/store/search?q=reduce+brightness

many  more apps to reduce brightness this will safe gaud your eyes

more ways to  protect your eyes is using eye protection tem. glasses

Unlike other screen protectors, Reticare eye protectors were developed in a joint collaboration with the Complutense University of Madrid and are patented and scientifically proven. Reticare makes eye protectors for smartphones (including a tempered glass version), tablets, laptops, and computer monitors.