Hands-Free Mouse Solution Allows for Computer Control Via Head Motion
From: Rehab Management - 05/28/2014

NaturalPoint, headquartered in Corvallis, OR, markets a hands-free mouse
solution available in an AT package that its website notes has successfully
accommodated patients with amyotrophic lateral sclerosis (ALS), spinal cord
injuries (SCIs), muscular dystrophy, and other special needs. The SmartNav 4
AT features a built-in Dwell Clicking Software and free On-screen Keyboard
created by Lake Software.

The SmartNav 4 is designed to provide users everything necessary to control
their computer using only their head motion. It is built to complement
natural head motion, and by moving the head less than quarter inch, the user
can maneuver the cursor across the entire screen.  

Read the entire article at:
http://www.rehabpub.com/2014/05/hands-free-mouse-solution-allows-computer-control-via-head-motion/

Link:
SmartNav 4: AT Overview
http://www.naturalpoint.com/smartnav/products/4-at/