Amy said, "YES, the right lens can make a HUGE difference"
Last winter at Jackson I was on a steep trail in clouds with a fellow from our group. He was having a terrible time. He said he couldn't see anything. I swapped goggles with him. He wore my Prizm Rose and I wore his cheap junk part-faded goggles. I did OK. He did much better than before and got down smoothly. He was effusive with his thanks to me for the goggle swap. He skied directly to the shop and bought good goggles. The right lens makes a real HUGE difference. An example...I used to use Smith goggles. I had the Sensor lens that was stock in those. They didn't work well for me--poor contrast in flat light. I changed them for the RC36 (rose copper 36%), and they worked much better for my eyes. Many other skiers really like those Sensor lenses. Whatever works for your eyes....
FIFY.