** Limit your computer time for only 10-20 minutes a day. It will be even better if you forget computer/iPad/smartphone for a while, specially on the first month or so. When you do feel ready to use the computer, make sure to readjust the brightness to minimum. Also helps to wear sunglasses while you are online. **

BTW, maybe this thread should be a sticker one?! I think people joining in could get to this info more easilly if it was a sticker.