The existence of gadgets inevitably affects our life, especially our eyes. Many people now work with gadgets almost all the time without having enough rest for eyes. Myopia or hypermetropia is not a problem anymore since the existence of concave-convex lens for those eyes disruption. But, who could hold the pain or headache when one feels so tired on eyes?
I, myself, have no eye problem. But sometimes, I need to work with laptop all the time for some days. I got some problems for some moments. Th