Not sure if this is the right thread to be on. Anyway I am 40 and my eyesight has changed. Have just got a pair of glasses for reading/ computer, but I am wondering if varifocals would have been better, because I tend to do stuff like watch to and go on my iPad, and I work in a school and look at a smart board then down at a computer. I originally had glasses that corrected my astigmatism and I could use mainly for distance. So basically I need separate glasses for near and distance, but I don't need them all the time.