June 1964
Volume 3, Issue 3
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Articles  |   June 1964
The Pupil in Myotonic Dystrophy
Author Affiliations
  • H. STANLEY THOMPSON
    Neurosensory Center (Publication No.33) and the Departments of Ophthalmology and Neurology, College of Medicine, State University of Iowa, Iowa City, Iowa
  • MAURICE W. VAN ALLEN
    Neurosensory Center (Publication No.33) and the Departments of Ophthalmology and Neurology, College of Medicine, State University of Iowa, Iowa City, Iowa
  • GUNTER K. NOORDEN
    Neurosensory Center (Publication No.33) and the Departments of Ophthalmology and Neurology, College of Medicine, State University of Iowa, Iowa City, Iowa
Investigative Ophthalmology & Visual Science June 1964, Vol.3, 325-338. doi:https://doi.org/
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      H. STANLEY THOMPSON, MAURICE W. VAN ALLEN, GUNTER K. NOORDEN; The Pupil in Myotonic Dystrophy. Invest. Ophthalmol. Vis. Sci. 1964;3(3):325-338. doi: https://doi.org/.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

The pupils of 15 patients with myotonic dystrophy were examined with the electronic pupillograph of Lowenstein and Loeioenfeld. They were found to have round, equal, miotic pupils which reacted sluggishly to light and to near vision. The studies showed no defect of the sympathetic pathways. Pupillary fatigue was comparable to the normal. Various locations for a defect causing this combination of pupillary abnormalities are discussed. The midbrain is suggested as the most likely location.

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