Multiple Mechanisms of Extraocular Muscle “Overaction”
نویسندگان
چکیده
منابع مشابه
Surgical Treatments in Inferior Oblique Muscle Overaction
PURPOSE To compare the outcomes of surgical procedures in the treatment of inferior oblique muscle overaction (IOOA) as a common disorder of ocular motility. METHODS This retrospective study was performed on patients with primary and secondary IOOA who underwent three surgical treatment procedures including disinsertion, myectomy and anterior transposition, between 2001 and 2011. Type of stra...
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Hepatocellular carcinoma (HCC) rarely metastasizes to the extra ocular muscles (EOMs). We present a case of bilateral metastasis of HCC to the EOMs and focus on the magnetic resonance imaging (MRI) features. Orbital MRI revealed nodular enlargement of bilateral multiple EOMs, with isointensity on T1-weighted images and heterogeneous, intermediate-to-high signal intensity on T2-weighted images, ...
متن کاملAccessory extraocular muscle.
Although on cover test the child maintained fixation easily with either eye, he preferred to view with the right eye. A marked left convergent strabismus was present, the deviation being greater on accommodation; the cover test also showed alternating hypertropia. When fixing with the right eye the horizontal deviation was approximately 35A with left hypertropia and when fixing with the left ey...
متن کاملPrimary oblique muscle overaction: the brain throws a wild pitch.
BACKGROUND Sensorimotor and orbital anatomical mechanisms have been invoked to explain primary oblique muscle overaction. METHODS Review of primitive visuo-vestibular reflexes and neuroanatomical pathways corresponding to vestibulo-ocular reflexes, and correlation with known clinical abnormalities in patients with primary oblique muscle overaction. RESULTS Bilateral superior oblique muscle ...
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2. Which statement concerning the rectus extraocular muscle pulleys is correct? a. The rectus pulleys are composed of rings of cartilage. b. The rectus pulleys are rigidly attached to the walls of the orbit. c. Each rectus pulley receives an insertion from the global layer fibers of its rectus extraocular muscle. d. The global layer fibers of the extraocular muscles do not insert on the pulleys...
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ژورنال
عنوان ژورنال: Archives of Ophthalmology
سال: 2006
ISSN: 0003-9950
DOI: 10.1001/archopht.124.5.680