Obviously, we would all avoid bad eyesight if we could. I know of no surefire way to do that, although this paper suggests that you can improve your odds of avoiding myopia, at least, by having non-myopic parents and by avoiding "near work". Unfortunately, you can't do anything about the former and somehow I don't think protecting your eyesight is a good excuse for getting out of schoolwork. Oh well.
Out of curiosity, I signed up to be a Wunderground Photographer. They do require that uploaded photos be weather-related but it appears that almost any photo taken outdoors can be considered weather-related. So it's no problem for me as most of my photos are outdoors anyway.
And finally, I noticed that this is entry #1000!