I had it done 5 years ago. I definately had problems in low light the first few months after I had it. I remember going fishing one night and feeling like I was blind...wierd feeling? Now I don't have any problems. Maybe it gradually got better, or maybe I adjusted. I actually feel my vision is at best when driving at night. Everything seems a little more clear then? Still the best money I ever spent! At the time, it cost me $4500, now I have a friend who had it done for $1800! To not have to worry about putting in those contacts and wear them for 16-18 hours during hunting season is well worth the money spent!