Fotios, here is the switch Gary has used since he lost the ability to type with his headmouse almost 3 years ago....it is called the Tash Microlite...

http://www.synapseadaptive.com/switc...e_switches.htm

I hope the eye movement works better for you...than it did for him...but here is one more thing you can look into if it doesn't.....I am not joking when I say Gary "literally" has about one inch of headmovement even with that his head has to be stabilized with pillows....so if you have movement "at all."...it should work....we mount it with a slim armstrong mount positioned at his left temple..( as that is where he personally has the most controlled movement with the least uncontrolable spasms)..but it could be positioned differently for people who have more controlled movement elsewhere...fingers, toes, etc...it is very slow for him..but that is just because he has so little movement...others with more movement can type faster with it ,,,Lisa