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HOW TO ADJUST AND USE THE TRIEYE MIRROR
It is important that the mirror is adjusted correct to give as good review as possible. The size of your head, distance between the eyes and riding position on the bike will require different adjustments. When being adjusted the mirror will stay in that position. Bear in mind that the mirror is a tradeoff between getting a good rearview and at the same time not disturb your forward view.
Put on on the TriEye eyewear and turn your head 10 – 15 degrees to the side with the mirror. Adjust the mirror by using your fingers.
After the first adjustment, you should see a fraction of your cheek and the top of your shoulder in the mirror. Bike carefully while optimizing your rear view.
Expect 2-3 rides to get used to your increased view and the mirror. As you get used to the mirror and rear view, you will never bike without.
Step-by-step video
The video below gives you a good idea of both how to adjust and use Trieye. Most people need 2 - 3 rides to get used to the mirror and find the optimal adjustment.