Via Scoop.it – Transportation Today

The BreathalEyes app for iPhone uses the smartphone’s camera to detect and measure involuntary eye movement, and then offers an approximate blood …   The app uses the iPhone camera to record a subject’s Horizontal Gaze Nystagmus (HGN) – where the eye twitches and jerks of its own accord as the iris reaches an angle of about 45 degrees while the person’s head remains forward. Sufferers of HGN are blissfully unaware that it’s happening, and there are many reasons why it occurs – one of which being alcohol consumption. As such, suspected drunk drivers have been subjected to variations of the pen test for some time now as one of an arsenal of field sobriety tests.   The BreathalEyes app is available now for just US$0.99, and is compatible with iPhone 4 or later. Fans of Google’s mobile OS can look forward to an Android version later in the year.
Via www.gizmag.com