I've gone two different routes with this. I use progressive lenses. I had one pair of prescription sunglasses made (they ended up in my car). I have another pair of prescription glasses with transition lenses. These are what I wear 98% of the time when I’m riding. Both pairs have titanium frames and were purchased on sale for under $150.
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A conclusion is the place where you got tired of thinking. - S. Wright
Favorite rides in the stable: Indy Fab CJ Ti - Colnago MXL - S-Works Roubaix - Habanero Team Issue - Jamis Eclipse carbon/831