Stop by your local bike shop and try on every goggle they have. You need to have great peripheral vision. Good luck!

 

I would buy the goggles. They're a little cheaper than a bagger!

I bought a pair of HD Sunglasses that lighten up when its dark out and turn dark when the sun comes out. About 100 bucks and the finish is peeling off. What a mistake that was!!!

I would suggest a nice pair of inexpensive goggles.

 

Goggles were the best investment, other than my bike i ever made. Eyes used to water costantly, not any more.