Age of this movie does show a bit but the concept is so insanely cool. I like how movies were made before cgi took over completely, you had to be very creative. I don't want to take anything away from cgi artists but I always prefer when stuff is made for real and then you spice it with cgi.
You are going to love the second one, it improves on everything shown in this one. Unfortunately after that the series takes a nose dive. They start to introduce more gimmicky things instead of focusing on what made these 2 so awesome and cool and scary.
Also about the laser eye surgery, I wanted to get the procedure done but curiosity got the better of me and I looked how they are done, bad move, if you don't know don't look it up, didn't make me feel any better about it :D