Well, yes, reading on a backlit screen will be dad for your eyes. You should know that when you have reading on backlit screen, your eyes have to be focus on the point, so this will make your eyes fell strain. In a long time, it will do harm to your eyes. Anyway, you should be careful about it. Besides, it all depends on your pose when you have reading. You should not read them in the bed. Also you should also pay more attention to your reading habits. For example, you’d better not read a book in a dark place. And the position and the distance of your reading are also very important, so just be careful about them. So that you can not damage your eyes. Also, the light from the screen is also harmful to your eyes. Just be careful about it.