I had the left eye done in 2006. My right eye got progressively worse over the next five years. I finally went in and had the right eye done in January 2012. It's exactly like Lady Lee describes. No pain, no discomfort. No more itch than what you might get during hay fever season, but not even that bad. I still have to wear bifocals, but my correction is for near sight. I can easily read a book without glasses and a computer screen is easy. But driving still requires glasses - but my doctor set the lense so that both eyes have the same prescription.
If you ever need it done, don't even think twice. It's actually far less painful than having your teeth cleaned and much less uncomfortable.
JV