A lot of people experience a feeling similar to car sickness when they first try wearing prisms. This is completely normal. However, after 1-4 hours of use, your brain will become so accustomed, you won't want to work without them!!
WHERE DO PRISMS COME FROM?
Prisms were originally created for the rock climbing industry so that climbers didn't have to strain their necks looking up. We brought them to our industry so window cleaners could experience the same benefits.
PRISMS alleviate this risk 100% - it's as easy as looking straight ahead, to see straight up!
See them in action here :