The Humanscale Switch Mouse is definitely an ergonomic option for those seeking a computer mouse that does not exacerbate problems like carpel tunnel syndrome. However, this mouse's features do not stop at ergonomics.
In fact, it is called the Switch, because it can be used by both left and right handed individuals, making it an ambidextrous device. The ergonomic component rests in the adjustable nature of the mouse. It has a palm rest that can be adjusted for your comfort.
This is definitely a step in the right direction. With the computer mouse contributing largely to the development of carpel tunnel syndrome, it is important there are options out there to provide relief. Besides, just because you're left-handed doesn't mean you should be left out of having ample mouse options.
[via Coolest Gadgets]