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Related Experiment Videos

Spasmus nutans. A long-term follow-up

I Gottlob1, S S Wizov, R D Reinecke

  • 1Foerdeber Eye Movement Center for Children, Wills Eye Hospital, Department of Ophthalmology, Jefferson Medical College of Thomas Jefferson University, Philadelphia, Pennsylvania 19107, USA.

Investigative Ophthalmology & Visual Science
|December 1, 1995
PubMed
Summary
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Spasmus nutans often resolves, but subclinical nystagmus persists into childhood. Most children with spasmus nutans achieve good visual acuity, though some may have persistent strabismus or amblyopia.

Area of Science:

  • Ophthalmology
  • Pediatric Neurology

Background:

  • Spasmus nutans presents with nystagmus, head nodding, and anomalous head posture in early childhood.
  • The visual prognosis and long-term resolution of nystagmus in spasmus nutans remain unclear.
  • Quantitative eye movement recordings are crucial for assessing nystagmus resolution.

Purpose of the Study:

  • To conduct long-term follow-up of patients diagnosed with spasmus nutans.
  • To evaluate the visual outcome and persistence of nystagmus in spasmus nutans.

Main Methods:

  • Followed ten patients with spasmus nutans clinically until a mean age of 7 years.
  • Utilized quantitative eye and head movement recordings for assessment.

Main Results:

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  • At mean age 7.1 years, visual acuity was 20/20 in 4 patients, ≥20/30 in 5, and 20/50 in 1.
  • Three patients exhibited orthotropia with normal stereo acuity; others had strabismus, amblyopia, or latent nystagmus.
  • Quantitative recordings revealed persistent fine, intermittent, asymmetric, pendular nystagmus in all patients.

    • Conclusions:

    • Good visual acuity is generally expected in spasmus nutans patients.
    • Approximately one-third of patients achieve normal stereo acuity.
    • Subclinical nystagmus can persist until ages 5 to 12 years.