Trackball
Does trackball operation involve the thumb? Possible arthritis in thumbs?
I have used this mouse for almost since it was first introduced. It does involve the thumb to move the roller ball. I have not heard of anyone getting arthritis due to this. It is designed to be fully ergonomic to minimize risk of arthritis.
9 years ago
by
Posted by:
yackman01
from
Brainerd MN