NaturalPoint, headquartered in Corvallis, Ore, 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. The product also features an aluminum case with mounting options, including ¼-20 thread mounts for standard tripods, three times the resolution to allow for more precise tracking, and improved light filtering.

[Source: NaturalPoint]