It was true for me.

My initial prescription was -0.25 and ended up at -1.75 a decade later. Every time I went to the eye doctor, I walked out with a new script.

I couldn't afford to replace my broken glasses during the GFC so stopped wearing them.

I haven't worn them since.

I'm not sure what I'll do if my eyes start deteriorating. Eye exercises? 

 Ive read good things about starting off into the direction of the sun at dusk and dawn. 

Also have heard anecdotes of people using this technique to improve eyesight 

 Yeah I do that whenever I think to.

When I lost my glasses I did lots of eye exercises regularly. I bought an eye patch and would throw a ball up in the air focusing on it. I'd also wear the eye patch over my stronger eye to work my weaker one more.

Focusing on distant objects & then closer objects helps work the eye muscles. 

 Wear your patch out and flip it back and forth. Id do it as a game to see who’s keen enough to notice lol