Posted: 30/11/2014 at 15:10
I like the belt and braces approach and I have a paper copy of most of my friends' email addresses - just in case.
You do know how to enlarge the image on the screen to make it easier to see don't you? There are lots of tips, tricks and gadgets to help people with dodgy eyesight to use their computers.
I had a colleague at work who had very poor eyesight but she was perfectly able to do everything on the computer that the rest of us could, with just a few tweaks to the formatting etc.