Responses of Medial Rectus Motoneurons in Monkeys with Strabismus
نویسندگان
چکیده
منابع مشابه
Responses of medial rectus motoneurons in monkeys with strabismus.
PURPOSE Monkeys reared under conditions of alternating monocular occlusion during their first few months of life show large horizontal strabismus, "A" patterns, and dissociated vertical deviation. "A" patterns manifest as an inappropriate horizontal component in the deviated eye during vertical eye movements (cross-axis movement). The objective of this study was to investigate response properti...
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PURPOSE The goal of this study was to determine whether the medial rectus muscles of patients with a history of medial rectus underaction or overaction show alterations in the process of satellite cell activation when compared with normal age-matched control muscles. METHODS Medial rectus muscles were obtained with consent from adult patients undergoing surgical resection due to medial rectus...
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PURPOSE To evaluate the outcomes of a surgical procedure involving the muscle union of the superior rectus (SR) and lateral rectus (LR) muscles with or without medial rectus (MR) recession for the treatment of strabismus associated with high myopia and the anatomic changes from before and after surgery. METHODS Thirty-five eyes of 20 patients who had undergone a muscle union of the SR and LR ...
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Ophthalmic examination yielded the following results: vision: OD: 20/40, OS: 20/40; intraocular pressure (IOP): OD: 15 mm Hg, OS: 15 mm Hg. Eye position and motion were normal. Slit lamp examination showed a purple-hued cystic mass nasally of the left eye, extending to the orbit with clear verge and slight congestion (Figure 1). Orbital magnetic resonance imaging (MRI) revealed a mass in front ...
متن کاملSimulated recruitment of medial rectus motoneurons by abducens internuclear neurons: synaptic specificity vs. intrinsic motoneuron properties.
Ocular motoneuron firing rate is linearly related to conjugate eye position with slope K above recruitment threshold theta. Within the population of ocular motoneurons K increases as theta increases. These differences in firing rate between motoneurons might be determined either by the intrinsic properties of the motoneurons, or by differences in synaptic input to them, or by a combination of t...
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ژورنال
عنوان ژورنال: Investigative Opthalmology & Visual Science
سال: 2011
ISSN: 1552-5783
DOI: 10.1167/iovs.11-7402