Actually, I think it does Peter
Does it make you swim around in circles?
Last time I used the lens I got separated from my buddy and ended up where I started the dive. Just kidding. It really works. I am used to wearing contact lenses and it solves the reading/focus issue for me which is a big challenge when you only have the option of manual focus on cameras such as Blackmagic cameras.
I hope others can benefit from this solution.