Beamer wrote on Feb 6, 2013, 14:21:

Unknown Soldier wrote on Feb 6, 2013, 13:00:

Blue wrote on Feb 6, 2013, 09:14:
This red/green enhancement comes at the expense of yellow/blue perception, so it's not without its issues (apparently it renders yellow traffic lights invisible), but it's an interesting bit of progress in an area where I never expected any.

As far as I can tell, this technology has been in use by a significant portion of the population since I started driving 20 years ago.

There are a few companies out there doing lenses to correct colorblindness. One even claims to correct dyslexia (it's actually more for dyslexia than color blindness but can do both.)

I spent about 25 minutes with that company back in August, quizzing them pretty extensively on their claims. Anecdotally they can back it up, but I'd love to actually talk to some of their users.