These things seem to be a hit/miss. Some people find it works well for them, others find it’s about as helpful as a poke in the eye. But if you really do want to try this, you can build your own for a fraction of the price pretty easily.
https://community.ld4all.com/t/the-cheapest-easiest-to-build-dream-goggles-ever/12747 <- How to build one for ~ five dollars (I would put the euro equivalent, but I don’t know the conversion)
Hope this helps!