Honestly, I'm already kind of befuddled sometimes that so many people still wear glasses and intend to continue doing so for a number of years more. I had lasik surgery performed the April of 2007, and it's a wonderful thing that I wish more people would take advantage of.
Have you wondered what would happen if your eyes deteriorate further in your elder years? They removed some tissue via ablation (laser). That tissue is not coming back. There is a point where even ablation cannot help.
Hmm, I always just figured I'd get lasic surgery again if my eyes ever went downhill. Does it not work that way? I'll just have to hope that science can save me again if the lasic surgery caused any damage. :p