Interesting discussion topic! I have been wearing the 55 Premier lenses for about 6 months now and I love them to death, I put them in in the morning and they do not exist for the entire day till I remove them at night and realize that yes, they have been in my eye all day long. As for eye color changes I have yet to notice any when they are in the lens is clearly visible if you look for the edges but my eye color has yet to change. Also a little note for those who just start off with the 55 premier lenses there are some growing pains with them especially if you have never worn contacts but as for anything else the lenses are great and I look forward to another 6 months with them before I have to see the doc again.