How Do Some People Keep Their Eyes From Really Changing Much For Say 10 or 15 Years?

How do some people keep their eyes from changing too much. It like maybe the last three or four times of going to the optometrist. That he or she can IF they want new pair of glasses, or current pair will still do fine. If the person do get a new pair, and at some point something wrong with it, or a screw fell off. That the last two or three pair will still work. Since not really much changes to the eye on the current check up.

How come others might not be that lucky, each time there are some changes to the eye. That a new pair of glasses is need. Hope as time go nothing goes wrong and have to go back to a old pair, like one of the last two. That difference will be notice.

By the way age does not matter, because some will not have really much changes at all to the eyes say at 37, 45, 47, 52 or 69. Will others at the same age can each time to the optometrist, even a little that makes a difference.