peripheral vision by scanning small sectors and utilizing off-center viewing. a series of short, regularly spaced eye movements to search each 10-degree sector. regularly spaced concentration on the 3-, 9-, and 12-o’clock positions.
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not exceed 10 degrees and view each sector at least 1 second. use peripheral vision by scanning small sectors and utilizing off-center viewing. be 30 degrees and view each sector for at least 3 seconds.
An extremely slow rate of breathing and insufficient oxygen. Emotional tension, anxiety, or fear. The excessive consumption of alcohol.