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First published in 2005. Routledge is an imprint of Taylor &
Francis, an informa company.
First published in 2005. Routledge is an imprint of Taylor &
Francis, an informa company.
This scarce antiquarian book is a selection from Kessinger
Publishing's Legacy Reprint Series. Due to its age, it may contain
imperfections such as marks, notations, marginalia and flawed
pages. Because we believe this work is culturally important, we
have made it available as part of our commitment to protecting,
preserving, and promoting the world's literature. Kessinger
Publishing is the place to find hundreds of thousands of rare and
hard-to-find books with something of interest for everyone
This scarce antiquarian book is a selection from Kessinger
Publishing's Legacy Reprint Series. Due to its age, it may contain
imperfections such as marks, notations, marginalia and flawed
pages. Because we believe this work is culturally important, we
have made it available as part of our commitment to protecting,
preserving, and promoting the world's literature. Kessinger
Publishing is the place to find hundreds of thousands of rare and
hard-to-find books with something of interest for everyone!
This is an EXACT reproduction of a book published before 1923. This
IS NOT an OCR'd book with strange characters, introduced
typographical errors, and jumbled words. This book may have
occasional imperfections such as missing or blurred pages, poor
pictures, errant marks, etc. that were either part of the original
artifact, or were introduced by the scanning process. We believe
this work is culturally important, and despite the imperfections,
have elected to bring it back into print as part of our continuing
commitment to the preservation of printed works worldwide. We
appreciate your understanding of the imperfections in the
preservation process, and hope you enjoy this valuable book.
Purchase of this book includes free trial access to
www.million-books.com where you can read more than a million books
for free. This is an OCR edition with typos. Excerpt from book: 1
--4left inferior rectus.p Otherwise there would be diplopia.
Correct this error -fty-ither exercise or operations, then these
two basal centers would lapse into their normal state of rest. The
result?restful state of both muscles and brain centers?would be
represented by Plate VII. Plate XXVI. represents the upward version
of the same pair of eyes. The first conjugate center sends an equal
amount of neuricity to both superior recti, but with unequal
results. The tonicity of the left superior rectus being greater
than that of the right superior rectus, the right eye would not
rotate as fast as the left unless supplemental neuricity should be
sent by the right first basal center to the weak right superior
rectus. In upward version the seventh conjugate center is active to
prevent inward torsion- ing of the eyes. The abnormal work done by
both brain and muscle in the upward rotation is shown by
contrasting Plate XXVI. with Plate XI, the latter showing the
upward rotation of orthophoric eyes. This abnormality consists of
activity of the right first basal center and the excessive
contraction of the right superior rectus. If the first and seventh
cortical centers cause no symptoms in the upward rotation of
orfhophoric eyes, these centers, doing precisely the same work in
superverting hyperphoric and cataphoric eyes, as shown in Plate
XXVI., can cause no symptoms. The discomfort, therefore, must come
from excitation of the right first basal center and the resulting
excessive con- ' ' 1J. FLAZEZXYZI traction of the right superior
rectus. Giving equal tonic- ity to the superior and inferior recti
by either exercise or operations, allows the right first basal
center to remain inactive in the upward rotation, hence there could
be no symptoms. Plate XXVII. represents the d...
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