By detecting and analyzing Horizontal Gaze Nystagmus (HGN),  BreathalEyes approximates a subject's Blood Alcohol Content (BAC).  BreathalEyes allows the owner the ability to test anyone at anytime once downloaded onto their smartphone.  All you need to help your friends and family make better informed decisions when drinking alcohol is BreathalEyes on your smartphone and a few seconds of their time.  Please leave us a message on the contact page so we may continue to improve BreathalEyes.