Handwriting with Your Eyes

I know what you're thinking. But you're all wrong, I'm not high nor drunk and not on any type of drugs.
Dr. Jean Lorenceau of the Universite Pierre et Marie Curie-Paris has developed a medical device that translates eye movement into cursive handwriting.
Even that this was an impossible idea before because of the impossibility of controlling the eyes movements,  Lorenceau found that an optical illusion called reverse phi motion allowed him to create a tracking system for the voluntary smooth eye movements.
He said that cursive eye writing can be generated at will after little training with a 90-minute training session, a person could use the system to write 20 characters in a minute. For persons deprived of limb movement, this offers a fast, creative, and personal means of linguistic and emotional expression.
A paper discussing Lorenceau's invention appeared in the journal Current Biology
Note:'Reverse-phi motion' is an optical illusion helps explain how we view moving objects
   Stanford Report, September 12, 2011