In my personal experience, my vision has decreased since I started working as a developer (4 years ago from today). I don't think the display by itself causes d

In my personal experience, my vision has decreased since I started working as a developer (4 years ago from today). I don't think the display by itself causes damage (at least I haven't found a trustful source claiming radiation or something else damages your vision). But I've noticed my vision gets tired after I keep staring at something for a long period of time, it could be my laptop's screen, phone, tablet or a book.