How and Why They Perform The Horizontal Gaze Nystagmus (HGN)

According to the American Optometric Association nystagmus is a vision condition in which the eyes make repetitive, uncontrolled movements. These movements often result in reduced vision and depth perception and can affect balance and coordination. These involuntary eye movements can occur from side to side, up and down, or in a circular pattern. As a […]

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