Identifier: diseasesofnervo00jell (find matches)
Title: Diseases of the nervous system : a text-book of neurology and psychiatry
Year: 1915 (1910s)
Authors: Jelliffe, Smith Ely, 1866-1945 White, William A. (William Alanson), 1870-1937
Subjects: Mental Disorders Nervous System Diseases
Publisher: Philadelphia : Lea & Febiger
Contributing Library: Columbia University Libraries
Digitizing Sponsor: Open Knowledge Commons

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Fig. 95.—Cerebral syphilis. Exter-nal rectus palsy, right eye. Fig. 96.—Trochlearis palsy in cerebrospinalsyphiUs. Lateral conjugate palsy is usually due to a pontine lesion on theside of the palsy, and which implicates the abducens fibers near thenucleus, and the synapses of the posterior longitudinal bundle, possiblyLewandowskys tractus pontis ascendens. Pressure at a distance mayalso occasionally cause a lateral conjugate palsy. • Fractures, pontine tumors, multiple sclerosis, softening (afterlabyrinthine infection) are among the causes of this comparativelyrare condition. (c) Vertical Associated Palsy.—Here the motion of both eyes ishindered only on looking up or down—all other associated movements DISEASES OF THE OCULOMOTOR NERVES 207 are possible. When there is loss of ability to look down usually theeyelids do not descend as they normally do. In some patients thepalsy is not symmetrical, one eye moving up or down more thanthe other. Certain forced positions of the eye

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