Supposedly kittens eyes should start changing color around 6 or 7 weeks old, and be fully changed by 12 weeks but I think Ollie might be a late bloomer in that department. I've been curious to see what happens with them since they stayed blue so late, but I think they are slowly changing. They still have a lot of blue in them but the center is changing to gold I think. Both his parents have golden eyes. Here's the progression...some days I think I'm going crazy because they still look blue or sometimes green, but then sometimes I see that gold real well. I guess time will tell.