Screen Orientation

A device whose display arm swings across can be worn over the left eye or the right. When you move it, the picture turns with it so that it is the right way up whichever eye you are using.

This happens on its own. There is nothing to set when you swap the device from one side to the other.

Turning it off

Say "MY SETTINGS", then "AUTO ROTATE", to stop the picture turning. Saying it again turns it back on. The tile shows which it is.

Turn it off if you work in a position where the display rotates unintentionally.

Devices with a fixed display

Not every device has a display that moves. On one that does not, the picture has only one orientation, there is nothing to rotate, and Auto Rotate is not in My Settings at all.