No, I do not wear glasses for a few years now. However I suffered with headache few years ago. It was about a month with no single sun ray here. I went to optitian and my eyes were allright according to their tables. They were surprised how accurately I needed to set the correction for sharp view, since I saw blurry what caused headache. They told me that they have never met someone able to distinguish lenses with such a precision. I used the glasses for a few months, but later they were not needed anymore. This was before me getting first laser.
Now my sight is excelent. Due to laserpainting experience I can be in low light condition well (I can read and see where people usually need to switch the light on) also I can focus with precision. After exploring those holograms my eyes improved further. I can focus much more. On TV screen I can distinguish tricks they used and noone else see that. I notice details much more, see awesome compositions for photography, I perceive the light as dynamic 3D space I move inside. It is wierd, but you can train your eyes (if you know how eye and perception works, it helps a lot).
And that's why I need feedback on this, my sight is different, what limits me - I'm biased.
Edit: BTW great point, Paul. I wanted to rep you, but I need to spread some. :/