It actually worked!
Used on a fairly rough 1 hour ferry ride, and was fine the whole time! I found these worked *best* when I focused on something (a phone, a book) rather than just wearing them and looking around. In other words, when I did precisely the sort of thing that would have made me feel sick without the glasses, I felt better! Worked for my son, too.  You look like a bit of a crazy person wearing them, but it’s worth it to avoid the nausea, for me anyway
Rating: 5 stars