I'm nearsighted and have worn glasses for about eleven years or so. I rarely wear them when I'm at my computer. Sometimes the typeface on web pages hard for me to read, but not drastically so. I could wear my glasses, but a more logical solution would be to simply increase the font display size on my browser. Of course I rarely bother with the font size; so this leads to my misreading things, like today when I read group lunch as grouch plug. At the time a grouch plug seemed perfectly logical. Who among us hasn't felt the need for such a device at times?