I know three people who had it done, my aunt who needed reading glasses, it lasted about 4 months then she had to go back to glasses, a friend's wife who now has issues with not getting enough tears and has to use eye drops, the doctors said it was a result of the laser correction, and two weeks ago my brother in-law, they did the wrong amount of correction in one eye and have to wait for it to heal to do it again in the right amount. They actually told him they made a mistake in the amount of correction. Interestingly all three were done in top Boston practices with 1000's of positive referals. Scary stuff if something goes wrong.