Why worry about something you can't fix? (Unless, of course, your monitor, not your vision, is the problem.) Unless you "do colour" for a living and have wondered why clients aren't banging down your door, it's probably not a real-world problem for you. (If it was a problem severe enough to be a safety hazard or mangle your fashion sense to the point that a hypothetical Garanimals For Grownups might be helpful, you would probably be acutely aware of it by now.) Hell, there's even at least one "name" professional photographer (Joel Grimes) who would score worse than you did. (Your problem is relatively subtle, apart from a bit of a mess in the red/yellow/green transition. You would probably have some real difficulty distinguishing the yellows of an egg yolk, a buttercup and a lemon, or at least being able to spot them in isolation. As handicaps go, I've seen worse.)