By Burt Dubow, OD. Nystagmus most commonly causes the eyes to look involuntarily from side to side in a rapid, swinging motion rather than staying fixed on an object or person. Some nystagmuses, however, cause the eyes to jerk sideways or up and down.
http://www.allaboutvision.com/conditions/nystagmus.htm
a congenital or acquired persistent, rapid, involuntary, and oscillatory movement of the eyeball, usually from side to side. Origin of nystagmus.
http://www.dictionary.com/browse/nystagmus
Nystagmus is most commonly caused by a neurological problem that is present at birth or develops in early childhood. Acquired nystagmus, which occurs later in life, can be the symptom of another condition or disease, such as stroke, multiple sclerosis or trauma.
http://www.aoa.org/patients-and-public/eye-and-vision-problems/glossary-of-eye-and-vision-conditions/nystagmus?sso=y
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Medical Definition of vertical nystagmus. : nystagmus characterized by up-and-down movement of the eyes.
https://www.merriam-webster.com/medical/vertical%20nystagmus
A Guide To Nystagmus. Nystagmus most commonly causes the eyes to look involuntarily from side to side in a rapid, swinging motion rather than staying fixed on an object or person. Some nystagmuses, however, cause the eyes to jerk sideways or up and down.
http://www.allaboutvision.com/conditions/nystagmus.htm
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https://www.merriam-webster.com/medical/vertical%20nystagmus
What is nystagmus? 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.
http://www.aoa.org/patients-and-public/eye-and-vision-problems/glossary-of-eye-and-vision-conditions/nystagmus?sso=y
a congenital or acquired persistent, rapid, involuntary, and oscillatory movement of the eyeball, usually from side to side. On the right, nystagmus on fixation, fingers are counted at 5-6 feet.
http://www.dictionary.com/browse/nystagmus
medical meaning term nystagmus
Nystagmus is a vision condition in which the eyes make repetitive, uncontrolled movements.