I presume that Anti-fog are better than Anti-Mist?
I can only assume they are - sounds a bit of a loose description?
TBH, I only started using them as my company chooses them as standard PPE for our industrial sites and I trust my Industrial Safety team to know what they are talking about in terms of impact resistance, UV protection, EN standards, etc, etc. I only get issued the clear ones for work but ordered the smoke lens ones for myself on line. For £10 I find them really comfortable, I can wear them off the bike and I won't be annoyed if they get broken or nicked!!
My cynical side tells me that if they called them Cycling or Sports Glasses they'd market at a much higher price.