I've had various prescriptions and gone for years here and there without glasses. (had glasses starting when I was about 5) My eyes seem to change all the time.

Right now I'm in a "glassless" phase. One of my eyes turned nearsighted, and the other turned farsighted. My eye doc said the dominant eye switches now depending on whether I'm looking close or far, which is saving me from needing glasses or bifocals now.

She also gave me eye exercises, which she said will help keep me from needing glasses for a good long while. If I do them. Which I rarely do. Naughty me...