Hey people... to answer all your stupid as hell questions. I have two different coloured eyes. I have 20/20 vision. We see everything the same colour as everyone else (I even tried covering one eye at a time and comparing colour tones just to make sure when I was younger). I have one brown and one hazel. Many people think it's cool and some even wish they had it. I actually had no idea it was a disease until recently. But there are no symptoms and yes, I can see just as perfect as any idiot with same coloured eyes.
PS: Mine is genetic because my great grandmother had it, and my uncle also has it. I was born with a normal brown eye and a grey eye with a blue quarter. My left eye is still brown and my right eye is now hazel with one quarter of it (like a perfect quarter at the bottom left -toward the direction of my nose) is slightly darker hazel than the rest, but still much lighter than the brown of my left eye. Mom said it turned like about 2 weeks after birth. Since my Mom's grandma and her brother both have it, there was no problem.
There you go, you're informed