can i get cancer from being on the computer too long? ive been on the computer all day for like 4 days, and my eyes started hurting even if i looked straight ahead, it hurt, my parents said it might be allergies, but i get allergies in the corner of my eye where the tear socket is, so they said it might be from looking at the screen and everything, because idk how to explain it, but my eyes hurt for a week , then i stopped going on the computer the first day but as i said it lasted the week, so i want to know if i could get cancer