ABO NOCE Basic Opticianry

Category - Ocular Anatomy, Physiology, and Pathology

Nystagmus is a condition in which the eyes:
  1. Turn white
  2. Are crossed
  3. Cannot focus
  4. Shake back and forth
Explanation
Answer: D - Shake back and forth

Nystagmus is a condition in which the eyes shake back and forth. This involuntary movement can either be vertical or horizontal and is sometimes called “dancing eyes.” This disorder can be congenital or acquired through various means.
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