I definitely recommend contacts if you can get used to them. I find that when wearing glasses I have very limited field of vision, especially on a bike. I end up looking over the top of the glasses or to the side of them and then not seeing clearly. With contacts you have your full field of vision, even periferal vision intact. If you are worried about bugs/dust in your eyes, wear a pair of sunglasses. And always bring a little bottle of saline solution to flush out dust if you do get something in your eyes. That is my solution anyway.