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Chapter-07 Neuro-ophthalmic Manifestation of Fourth Nerve

BOOK TITLE: Essentials of Neuro-ophthalmology

Author
1. Mukherjee PK
ISBN
9788184489828
DOI
10.5005/jp/books/11188_7
Edition
1/e
Publishing Year
2010
Pages
8
Author Affiliations
1. Pandit Jawaharlal Nehru Memorial Medical College, Raipur, Chhattisgarh, India, Pt JNM Medical College, Raipur, Chhattisgarh, India, Pandit Jawahar Lal Nehru Memorial Medical College, Raipur, Chhattisgarh, India, Pt Jawahar Lal Nehru Memorial Medical College, Raipur, Chhattisgarh, India
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Abstract

Lesion of fourth nerve causes under-action of superior oblique. The nuclear and fascicular lesion differs from trunk lesion. The nucleus and fascicles on the right side of the mid line become left trocheal nerve trunk hence lesion of right nucleus and fascicle cause left sided paralysis. This is not applicable to trunk lesion. Trunk lesions produce ipsilateral superior oblique palsy.

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