The Pennsylvania Supreme Court has affirmed a Superior Court ruling that a horizontal gaze nystagmus test provides sufficient evidence for probable cause and an arrest in DUI cases. The Pennsylvania ...

INDIANAPOLIS (WISH) — It’s about the size of a small screen, and yet, it could have a major impact on how field sobriety tests are conducted in the United States. Peter Zahart of Winamac calls it the ...

Nystagmus is the medical term to describe involuntary eye movements. The eyes may move vertically, horizontally, in circles, or erratically in different directions. Nystagmus affects about 1 in every ...

It’s early Sunday morning. Deputy Thomas Vanik sits in his vehicle in the southern end of Carroll County, watching other cars drive past him. Bars have just let out after a typical Saturday night.

Nystagmus in dogs refers to the flickering or twitching of the eyes. In most cases, flickering eye movements are entirely normal. But they can become concerning if the movements happen when your dog's ...