Yes, we know. I had a pair, I didn't think they had any effect whatsoever, I said that when it came time to get a new pair of glasses and the optician shrugged

Yes, we know. I had a pair, I didn't think they had any effect whatsoever, I said that when it came time to get a new pair of glasses and the optician shrugged and said yeah if they do anything it's really minor, but some people like them. And this wouldn't be the first study to support that. Also tried the slightly yellow "drive safe" ones but they didn't help with night driving like they were meant to either. Turns out what's really helpful there is giving the inside of my windscreen a really good clean. What a shame it's the hardest bit of glass in the car to do! Anyway I've gone back to standard ultrathin lenses with protective and anti-reflective coatings and I'm really happy with them. Which is great, because my lenses are hideously expensive as it is due to my ridiculous prescription.