I have tried and tried to use them. I guess I have issues so I just wear the glasses. It would be nice to wear them though....no fogged lenses, no smear marks, no scratched lenses.....man I wish I could wear them.
I just had lasik done last July... one of the best decisions I have ever made. It is so nice for everyday life, but especially for hunting and backpacking overnight. If any of you are considering it, just do it!
That said, I used to wear contacts hunting. I don't remember the particular brand, but it was a model that allowed you to sleep in them for a few days without drying out very bad. I slept in them and just used some rewetting drops when I woke up in the morning without many issues. I preferred this to taking them out every night because it can be hard to keep your hands clean enough on a backcountry hunt. Guiding a dirty finger in your eye via headlamp at 5am is no fun.