[ojo-rojo]

I'm red-green colorblind. I've recently learned some people have four types of cones in the retina. They have tetrachromatic vision, seeing over a hundred times more colors than I do. I'm fascinated by what kind of a bright vibrant world they see!

[_spduchamp]

It is my understanding that it isn't a brighter view, just more differentiation. So things that might look smooth and all one colour to some may have shades of colour to a tertrachromat. Eg. Make-up may look splotchy, paint looks streaky, etc. I'm not a tetrachromat, so I don't really know.

Can any tetrachromats weigh in on this?