
Originally Posted by
Velocivixen
Question: I am strongly right eye dominant, so when I have the mirror mounted on the left side I see two images. Like my eyes are trying to "work it out". Should I give it a week or so to get used to what I am seeing or switch the mirror to the right side? I DO have a handlebar mirror on my current bike, however I want to get used to a helmet mirror so if/when I get a road bike I will be used to the helmet mirror.
Well, if you put the mirror on the right side, it won't do you any good. Unless you move to the UK, or somewhere else where you ride/drive on the left side of the road. 
Since you have the mirror, I guess you may as well try to get used to it. I've never had an experience like yours, but I've had double vision out of one eye before, which my optometrist told me really was possible, and is a sign of poor correction. When's the last time you had your eyes checked?
That said, there are bar end mirrors for road bikes, and I know a lot of people who use and like them.
ETA - I used my REI dividend and coupon to get another pair of SW longjohns for $19 shipped.
It bugged me a little to buy something that I won't need for another five or six months, but it was one of the few things they have that I really can use, but can't easily buy locally.
Speed comes from what you put behind you. - Judi Ketteler