Are photochromic lenses good enough for night skiing?

Photochromic lenses are convenient for day-to-night transitions but have two limitations for pure night skiing. First, they typically max out at 70–80% VLT in their clearest state, which is lower than dedicated clear night lenses at 85–95%. Second, the transition from dark to clear can be slow in cold temperatures. For occasional night skiing, they're adequate. For regular night sessions, a dedicated clear lens provides superior visibility.