How can glasses fix a lazy eye?

How can glasses fix a lazy eye?
If I were to need a new prescription for my glasses, would that be a reason for a lazy eye to return or to get worse?How can glasses fix a lazy eye?
i have a lazy eye, a pretty bad one in fact, i have worn glasses since i was 18 months old (i'm now 18) and no one knows unless i tell them. Glasses allow the eyes to work together instead of one on one..
It is lazy because it can't see clearly so it doesn't bother trying. I would say that it could reoccur if it can't see clearly with your current prescription.