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COMMENTS AND OPINIONS
Practical Classification of Nystagmus in the Clinic
Mark J. Kupersmith, MD
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I read with keen interest the special article by Professors Dell’Osso, Hertle, and Daroff,1 about the erroneous tendency of clinicians to assign a "motor" or "sensory" classification to specific types of nystagmus. I have spent hours listening to lectures and reading articles and book chapters by these experts. They have clearly delivered the message that merely observing the ocular oscillations can not be used to determine diagnoses or pathophysiology. However, their message appeared to "throw the baby out with the bathwater." Few ophthalmologists, neurologists, or neuro-ophthalmologists have access to a laboratory that performs quantitative eye-movement analysis. In the clinic, the practitioner has to perform the rigorous history, look for additional neurological problems, and have a proper differential that is adjusted for age. Nystagmus that has a true null point or a sliding null point (as in periodic alternating nystagmus), that is associated with congenital esotropia, or . . . [Full Text of this Article]
AUTHOR INFORMATION
RELATED ARTICLE
"Sensory" and "Motor" Nystagmus: Erroneous and Misleading Terminology Based on Misinterpretation of David Cogan's Observations
Louis F. Dell’Osso, Richard W. Hertle, and Robert B. Daroff
Arch Ophthalmol. 2007;125(11):1559-1561.
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RELATED LETTER
Practical Classification of Nystagmus in the Clinic—Reply
Louis F. Dell’Osso, Richard W. Hertle, and Robert B. Daroff
Arch Ophthalmol. 2008;126(6):871-872.
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