6 results match your criteria: "David Geffen Medical School at the University of California[Affiliation]"
Clinical and imaging features of congenital and acquired isolated inferior rectus muscle hypofunction.
J AAPOS
February 2021
Department of Ophthalmology, David Geffen Medical School at the University of California, Los Angeles; Stein Eye Institute, David Geffen Medical School at the University of California, Los Angeles; Bioengineering Department, David Geffen Medical School at the University of California, Los Angeles; Department of Neurology, David Geffen Medical School at the University of California, Los Angeles. Electronic address:
Background: Inferior rectus (IR) underaction may arise from various causes that are distinguishable through imaging. We investigated clinical and imaging characteristics of congenital and acquired causes of IR underaction.
Methods: Cases of IR underaction were selected from data prospectively collected in a study of orbital imaging in strabismic patients.
Reply to Comment on Age-Dependent Deformation of the Optic Nerve Head and Peripapillary Retina by Horizontal Duction.
Am J Ophthalmol
July 2020
Department of Ophthalmology, Los Angeles, California, USA; Bioengineering Interdepartmental Programs, Los Angeles, California, USA; Department of Neurology, Los Angeles, California, USA; David Geffen Medical School at the University of California Los Angeles, Los Angeles, California, USA.
Retraction notice to "The Globe's Eccentric Rotational Axis: Why Medial Rectus Surgery Is More Potent than Lateral Rectus Surgery" (Ophthalmology. 2018;125:1234-1238).
Ophthalmology
January 2019
Department of Ophthalmology, University of California, Los Angeles, California.
The Globe's Eccentric Rotational Axis: Why Medial Rectus Surgery Is More Potent than Lateral Rectus Surgery.
Ophthalmology
August 2018
Department of Ophthalmology, University of California, Los Angeles, California; Stein Eye Institute, University of California, Los Angeles, California; Department of Neurology, University of California, Los Angeles, California; Neuroscience Interdepartmental Program, University of California, Los Angeles, California; Bioengineering Interdepartmental Program, University of California, Los Angeles, California; David Geffen Medical School at the University of California, Los Angeles, California.
Purpose: Tables typically recommend greater lateral rectus (LR) than medial rectus (MR) surgical doses for horizontal strabismus of any given magnitude, a difference unexplained by mechanical models that assume globe rotation about its center. We tested this assumption during horizontal ductions.
Design: Prospective observational study.
Mechanics of the orbita.
Dev Ophthalmol
May 2007
Jules Stein Eye Institute, Departments of Ophthalmology and Neurology, Neuroscience Bioengineering Interdepartmental Programs, David Geffen Medical School at the University of California, Los Angeles, CA 90095-7002, USA.
The oculomotor periphery was formerly regarded as a simple mechanism executing complex behaviors explicitly specified by innervation. It is now recognized that several fundamental aspects of ocular motility are properties of the extraocular muscles (EOMs) and their associated connective tissue pulleys. The Active Pulley Hypothesis proposes that rectus and inferior oblique EOMs have connective tissue soft pulleys that are actively controlled by the action of the EOMs' orbital layers.
View Article and Find Full Text PDFDemonstration of systematic variation in human intraorbital optic nerve size by quantitative magnetic resonance imaging and histology.
Invest Ophthalmol Vis Sci
April 2004
Department of Ophthalmology, David Geffen Medical School at the University of California, Los Angeles, California, USA.
Purpose: To use magnetic resonance imaging (MRI) to measure the diameter along the course of the intraorbital optic nerve in living subjects and cadaveric specimens, and to validate measurements histologically in the same specimens.
Methods: Measurements of the intraorbital optic nerve were made in 23 living human subjects and in three formalin-fixed orbits using high-resolution, surface coil MRI in the coronal plane. Fixed orbits were then serially sectioned in the same plane, and stained by Masson's trichrome for digital morphometry of nerve diameter and densitometry of connective tissue constituents.