What are the chances of getting snow blindness spending an afternoon walking around Hakuba village with or without regular sunglasses? How about at the top of the gondola?
The problem is I'll be in Hakuba this April just for half a day, and not skiing or boarding. Basically, I'll just be sightseeing, since I haven't seen snow for 30 years. I normally wear progressive lenses, so to have prescription glacier glasses made up would be pretty expensive just for a one-off trip of 3-4 hours. On the other hand, I don't want to risk snow blindness.
If it's a real danger at that altitude, woul