Functional Morphometry of Horizontal Rectus Extraocular Muscles during Horizontal Ocular Duction
نویسندگان
چکیده
منابع مشابه
Magnetic resonance imaging of differential compartmental function of horizontal rectus extraocular muscles during conjugate and converged ocular adduction.
Activity in horizontal rectus extraocular muscles (EOMs) was investigated by magnetic resonance imaging (MRI) of humans during asymmetric convergence to a monocularly aligned target at 15-cm distance or monocular fixation of afocal targets placed over a wide range of conjugate abduction through adduction. Cross sections and posterior partial volumes (PPVs) of EOMs were determined from quasi-cor...
متن کاملChanges in Extraocular Muscle Volume During Ocular Duction
PURPOSE It has been tacitly assumed that overall extraocular muscle (EOM) volume is conserved during contraction and relaxation, yet this assumption has been untested up to now. We used high-resolution magnetic resonance imaging (MRI) to determine if total EOM volume changes during relaxation and contraction. METHODS Surface coil MRI in quasi-coronal planes was obtained in target-controlled, ...
متن کاملAfferent signals from the extraocular muscles affect the gain of the horizontal vestibulo-ocular reflex in the alert pigeon
We have shown previously that the gain of the horizontal vestibulo-ocular reflex (HVOR) is modified by afferent signals from extraocular muscle proprioceptors in the decerebrate pigeon. We have now analysed the variability of the HVOR in intact, alert pigeons and, using the artificial vestibulo-ocular reflex method, have found that in all of the pigeons tested afferent signals from the extraocu...
متن کاملMagnetic Resonance Imaging of Human Extraocular Muscles During Static Ocular Counter-rolling Extraocular Muscle MRI During Ocular Counter-rolling by
249 words; text 6,646 words; 8 figures. Articles in PresS. J Neurophysiol (July 20, 2005). doi:10.1152/jn.01157.2004 Copyright © 2005 by the American Physiological Society. Demer and Clark Extraocular Muscle MRI During Ocular Counter-rolling JN-01157-2004.R2, page 2 Abstract The rectus extraocular muscle (EOM) pulleys constrain EOM paths. During visual fixation with head immobile, actively-cont...
متن کاملFornix incision for horizontal rectus muscle surgery.
The conventional exposure of a horizontal rectus muscle is through conjunctival and Tenon's capsule incisions directly over the muscle. This results in a visible scar and in some patients is conspicuously unattractive. Therefore, a surgical method that hides the scar behind the eyelid should be welcomed by both the surgeon and patient. To accomplish this objective the medial and lateral rectus ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Investigative Opthalmology & Visual Science
سال: 2012
ISSN: 1552-5783
DOI: 10.1167/iovs.12-9730