What Is A Nystagmus? And What Does HGN Mean?



A Nystagmus is an involuntary jerking of the eye. A Nystagmus can have many causes – flashing lights, rotation, head injury, the position of the head, central nervous system depressants (like alcohol), and some people even have a natural nystagmus (called a resting nystagmus).

The HGN is by no means perfect and can give a false positive for a driver who is not impaired. If you have been charged with DUI and submitted to an HGN test, call one of Teague Law’s experienced DUI Attorneys who knows the science behind the HGN test and its flaws to defend your rights now. in the driver's eyes while the officer makes a series of passes with a stimulus and has the driver follow it with his eyes.

The HGN is by no means perfect and can give a false positive for a driver who is not impaired. If you have been charged with DUI and submitted to a HGN test, call one of Teague Law’s experienced DUI Attorneys who knows the science behind the HGN test and its flaws to defend your rights now.