In the old days skiers (and even early snowboarders) used to toss their goggles once they had too many scratches across the lenses. That's hardly good for your budget or the local landfills. Pick up a pair of these Oakley Crowbar Snow Goggle Replacement lenses instead. These replacement lenses are made by Oakley and feature full UVA/B/C protection--just like your Crowbar originals.
H.I. Yellow
I have the H.I Yellow, VR28 and the Persimmon. All are amazing both in clarity and durability. But I must say the HI yellow is the most versatile in all conditions. The contrast is great during whiteouts and works well during bluebird days. I will probably order a second set just as a backup. the VR28 is great in in shadows but flattens out too much of the contrast of the snow for me to identify bumps.
Oakley lenses are the best
I have the HI Persimmon lenses in my crowbars. These lenses are awesome. They are great for medium to low light conditions. The HI (High Intensity) gives the lenses a slight mirrored sheen. So basically its a cooler, better looking persimmon colored lens. I highly recommend it if you need a med-low light lens.